JP4860682B2 - Data center waste heat utilization plant cultivation system - Google Patents

Description

  The present invention relates to an Internet data center air conditioning system for installing and storing network devices, servers, data, and the like in a building, and in particular, to a data center exhaust for cultivating plants using exhaust heat exhausted from the Internet data center. The present invention relates to a heat utilization plant cultivation system.

  The Internet Data Center (IDC) provides a safe place to install and store network devices, servers, data storage devices, etc. in a fully equipped building equipped with advanced security and disaster countermeasures, as well as various types of Internet connection, etc. At the same time, it provides services that provide an access infrastructure network to the communication network and its operation and monitoring operations. Although IDCs are concentrated in the Tokyo metropolitan area, the movement to install large-scale IDCs that can also serve as backup centers in various parts of the country is accelerating as a risk avoidance for unexpected situations such as disasters.

  A large number of servers are housed in a server rack in the server room of the IDC, and the server room is air-conditioned with a plurality of packaged air conditioners (PACs) so as not to run out of heat due to heat generation. .

  As a conventional air conditioning system, the floor is a double floor, cool air from a packaged air conditioner installed in the server room is blown upward from the floor to cool the server in the server rack, and the upper part of the server room Air (warm air) is sucked with a packaged air conditioner and air-conditioned (cooled).

  At this time, the racks face each other, a cool air introduction chamber is formed between them, the cool air from the floor is introduced into the cool air introduction chamber, and the cool air is distributed from the cool air introduction chamber to the servers at each stage of the rack. A system (Patent Document 1) that efficiently cools each server by flowing and a system that centrally cools locally by providing an exhaust heat suction duct on a server rack in an overheated state (Patent Document 2) has been proposed. .

JP 2007-316989 A JP 2008-51475 A

  However, although the above-described system is effective for cooling the server in the rack, there is a problem that warm air is discharged as it is into the server room. That is, the air that has cooled the server becomes 30 ° C. or higher (30 to 38 ° C.), which becomes the server room temperature, which is a poor environment for technical workers who always work in the server room.

  In the first place, cooling a server that generates heat in the server room affects the surrounding environment of the IDC as well as exhausting that amount of heat outside the building or forcibly cooling it back to the PAC return side. There is a problem that cannot be overlooked from the viewpoint of energy saving.

The heating capacity of the data center (server room) when the server is viewed as a heating device is 3.0 kW (2,580 kcal / h) per square meter of the site. For example, the area of the server room of the data center is 2,700 m ^2. In this case, 8,100 kW (696,600 kcal / h) of heat is always discharged to the surrounding environment.

  Recently, in a cold region, a greenhouse plant was built next to the data center, using snow as cold energy, cooling the data center with snow stored in summer, and surplus cold air from the data center in winter. It has been proposed to cultivate vegetables using the exhaust heat of heat, but even if the server room air is introduced directly into the greenhouse, the amount of heat per unit volume is small and the inside of the greenhouse is heated with kerosene, etc. Unlike doing it, it is impossible to heat the greenhouse effectively.

  Therefore, the object of the present invention is to solve the above-mentioned problems, to keep the work environment in the server room comfortable, and to cultivate plants using the exhaust heat effectively without affecting the surrounding environment of the data center. It is to provide a data center exhaust heat utilization plant cultivation system.

  In order to achieve the above object, the invention of claim 1 divides the inside of a data center building into a bottom chamber, a server room, and a ceiling chamber, constructs a subtropical room for cultivating subtropical plants outside the building, In addition, a server rack for storing servers in multiple stages is installed so that the front of the server rack opens to the server room, and a heat exhaust passage is formed on the back of the server rack, and the exhaust heat passage is connected to the upper ceiling chamber. Then, the ceiling chamber is connected to the subtropical room through a connection duct, while the cold air from the air conditioner is supplied to the server room through the bottom chamber, and the cold air supplied to the server room is exhausted through the server rack. The warm air heated by the server in the server rack is supplied to the subtropical room through the ceiling chamber and the connection duct. It is a data center waste heat utilization plant cultivation system.

  The invention according to claim 2 is the data center exhaust heat utilization plant according to claim 1, wherein the server racks are installed back to back in the server room and a heat exhaust passage extending vertically from the server room floor surface to the ceiling chamber is formed therebetween. It is a cultivation system.

  In the invention of claim 3, an air conditioning machine room is defined in the server room, an air conditioner is installed in the air conditioner room, a cold air outlet of the air conditioner is connected to the bottom chamber, The data center exhaust heat utilizing plant cultivation system according to claim 1 or 2, wherein a warm air introduction port for introducing a part of the warm air from the ceiling chamber is provided, and an outside air introduction port for introducing outside air is provided.

  Invention of Claim 4 is a data center waste heat utilization plant cultivation system of Claim 1 or 2 in which the moss cultivation area which cultivates moss, such as Ganoderma, Agarisk, etc. is formed in the said ceiling chamber.

  The invention according to claim 5 is the data center according to claim 1 or 2, wherein the subtropical room is formed of glass, and a warm air seepage duct connected to the connection duct is provided along the floor of the subtropical room. It is a waste heat utilization plant cultivation system.

  Invention of Claim 6 is 30-38 degreeC warm air supplied from the said connection duct, a subtropical room is kept in a subtropical atmosphere, and subtropical plants, such as mango and papaya, are cultivated in the subtropical room. It is the data center waste heat utilization plant cultivation system of crab.

  The invention according to claim 7 is the data center exhaust heat utilizing plant cultivation system according to claim 6, wherein the cultivated moss grown in the cultivated moss area in the ceiling chamber is further cultivated in the subtropical room.

  According to the present invention, cold air flows from the bottom chamber to the server room, and the cold air flows through the server rack to the exhaust heat passage, so that the working environment in the server room can be kept optimal, and the exhaust air is exhausted to the exhaust heat passage. By supplying the heated air to the subtropical room, it does not require fuel for heating like a conventional greenhouse, and it has an excellent effect that it can always be an environment suitable for cultivation of subtropical plants. To do.

  A preferred embodiment of the present invention will be described below in detail with reference to the accompanying drawings.

  1 to 3 are schematic views of a data center waste heat utilization plant cultivation system according to the present invention, FIG. 1 is an overall front view, FIG. 2 is a plan view of the server room shown in FIG. 1, and FIG. It is a top view of the shown ceiling chamber and subtropical room.

  1 to 3, reference numeral 10 denotes an Internet data center building, and a subtropical room 11 formed of glass is constructed adjacent to the building 10.

  The building 10 is partitioned into a bottom chamber 12, a server room 13, and a ceiling chamber 14. A large number of server racks 17 for storing servers 16 in multiple stages are installed on the floor 15 of the server room 13. The server racks 17 are installed so that the two are back to back, and a heat exhaust passage 20 extending vertically from the floor surface 15 through the upper wall 18 to the ceiling chamber 14 is formed therebetween.

  In the server room 13, an air conditioning machine room 22 is defined by a partition wall 21, and an air conditioner 23 composed of a package type air conditioner is installed in the air conditioning machine room 22. The air conditioner 23 is configured such that a cooler 25 and a blower fan 26 are provided in a casing 24, a suction port 27 is provided in the upper part of the casing 24, and a blower outlet 28 that opens to the bottom chamber 12 is provided in the lower part of the casing 24. Is done. Although not shown in the figure, the cooler 25 is connected to an external air conditioner that supplies and circulates refrigerant.

  The air conditioning machine room 22 is provided with an inlet 30 for outside air OA, and a warm air inlet 31 for introducing part of the air (warm air) from the ceiling chamber 14 is provided on the upper wall 18.

  The server rack 17 is formed so that the front surface thereof opens to the server room 13, and a cold air outlet that blows out cool air from the bottom chamber 12 to the server room 13 in an upward flow on the floor surface 15 on the front surface of the server rack 17. 32 is provided.

  In the ceiling chamber 14, a moss cultivation area 34 for cultivating mosses 33 such as ganoderma, agarisk and the like in a high temperature / dark place is formed. As shown in FIG. 3, the moss cultivation area 34 includes a cultivation conveyor 35 provided along both sides of the exhaust heat passage 20. On the cultivation conveyor 35, the moss 33 is a sealed container for cultivation. The inside of the sealed container 36 is kept at a humidity required for growth.

  A rotation handle 37 for manually moving the cultivation conveyor 35 is provided at the carry-in / out end of the cultivation conveyor 35.

  The floor surface 18f of the upper wall 18 of the ceiling chamber 14 is formed with a passage 40 through which silver or a visually handicapped person can move with the wheelchair 38. An elevator device 41 is provided for entering and exiting things.

  The ceiling chamber 14 and the subtropical room 11 are connected by a connection duct 42, a fan 43 is connected to the connection duct 42, and a damper device 45 for introducing outside air is connected to the connection duct 42. The damper device 45 is provided with a heater (not shown) for heating the outside air when the temperature of the outside air to be introduced is low.

  The fan 43 is connected with a warm air oozing duct 46 for blowing warm air into the subtropical room 11, and the warm air oozing duct 46 is provided along the floor 11 f of the subtropical room 11. The warm air leaching duct 46 is formed by punching a large number of small holes in the duct, and is configured to blow warm air through the subtropical chamber 11 by blowing out warm air from the small holes.

  In the subtropical room 11, a subtropical plant area 51 for cultivating subtropical plants 50 such as mangoes, papayas, foliage plants, orchids, and citrus fruits, and a moss area 52 for further growing moss 33 grown in the ceiling chamber 14 These areas 51 and 52 are partitioned by a partition 53. A work passage 54 is formed along the subtropical plant area 51 and the moss area 52, and an exhaust port 55 for discharging warm air is formed in the upper part of the subtropical chamber 11.

  Next, the operation of the present invention will be described.

  A large amount of low-temperature heat is stably generated from the servers 16 stored in multiple stages in the server rack 17 installed in the server room 13 for 24 hours.

  In the air conditioner 23, the warm air and the outside air OA introduced into the air conditioning machine room 22 from the warm air introduction port 31 and the outside air OA introduction port 30 are cooled, and the cold air is blown out from the outlet 28 to the bottom chamber 12. The air is blown upward from the front cold air port 32. The cool air flows horizontally through the server rack 17 and cools each stage of the server 16, so that the cool air is heated to about 30 to 38 ° C. and flows into the exhaust passage 20.

  Thus, by blowing out the cold air from the cold air inlet 32 to the server room 13, unlike the conventional case where the warm air is discharged to the server room 13, the environment of the server room 13 can be optimized and the exhaust passage 20 can be provided. The warm air that has flowed can be obtained with a high amount of heat recovered from the heat generated by the server 16.

  Next, the warm air exhausted into the exhaust passage 20 flows into the ceiling chamber 14, and from the ceiling chamber 14 through the connection duct 42, the warm air oozes out from the fan 43 to the subtropical room 11 through the duct 46, and from the subtropical room 11. The air is exhausted through the upper exhaust port 55. This exhaust air is the air after the subtropical room 11 is heated, and is the air consumed by the subtropical plant 50, and is good for the surrounding environment.

  In addition, the ceiling chamber 14 and the subtropical room 11 are always supplied with warm air having a temperature of 30 to 38 ° C., and are maintained in an atmosphere of about 30 ° C. Since the ceiling chamber 14 is in the building 10, it is suitable for the initial growth environment of the moss 33 that can be cultivated without particularly using lighting equipment. That is, since the mycelium of Ganoderma mosquitoes (Mushrooms 33) grows well at 30 to 40 ° C., it can be made an environment suitable for growth by placing it in the sealed container 36 and applying appropriate humidity.

  In the subtropical room 11, the moss 33 grown to some extent in the ceiling chamber 14 can be taken out from the sealed container 36 and cultivated, and can be made suitable for an environment in which subtropical plants 50 such as mango and papaya are cultivated. It is also possible to freely adjust the amount of warm air blown out to the subtropical room 11 and the temperature of warm air by directly introducing outside air into the connecting duct 42 from the damper device 45 of the connecting duct 42 or heating the introduced outside air with a heater. It becomes.

As described above, the amount of heat generated by the server 16 in the server room 13 is usually 3.0 kW (2,580 kcal / h) per square meter of the site, and when the area of the server room is 2,700 m ^2. , 8,100 kW (6,966,000 kcal / h).

  Here, the amount of each of the outside air OA introduced into the air conditioning machine room 22 and the warm air introduced from the ceiling chamber 14 is adjusted according to the season. The machine 23 can operate only the blower fan 26 without cooling the outside air with the cooler 25 and can obtain a heating capacity of 6,966000 kcal / h.

  Also, in the summer, when the outside air temperature is as high as 30 ° C. or higher, warm air from the ceiling chamber 14 is introduced and circulated and cooled by the air conditioner 23. However, if the entire amount of warm air from the ceiling chamber 14 is circulated, Since the amount of warm air is eliminated, at least, for example, if the circulation amount is 83% and the outside air introduction amount is 17%, the heating capacity is 8,100 kW × 0.17 = (1,377 kW (1,184,220 kcal / h). can get.

The required heating capacity in the subtropical room 11 is 0.25 kW (215 kcal / h) per square meter of the site, and the cultivation area converted by the minimum heating capacity is 1,377 kW / 0.25 kW = 5. 508m ² , securing a cultivation area of about 1600m ² , even if the effective waste heat is 30% considering the effect of heat loss due to the outside air load on the wall of the building 10 and the connecting duct 42, that is, the server of the data center A cultivation area of about 60% of the floor area of the chamber 13 can be obtained.

  Mango, which is a subtropical fruit, has been widely cultivated in conventional greenhouse cultivation, but the optimum cultivation temperature is 24-30 ° C. In winter, if the temperature is constantly maintained, heating costs increase, so the temperature is 7-8 ° C. It is put to sleep and allowed to winter, and the fruits are allowed to mature in June-September. Since the subtropical room 11 of the present invention can always supply warm air of 30 to 38 ° C., it can always be maintained in a subtropical atmosphere with a suitable mango cultivation temperature of 24 to 30 ° C., and mango grows and bears fruit all year round. In addition, since the exhaust heat from the server 16 is used, the load of the air conditioner 23 required for cooling can be reduced and the running cost can be reduced, and the cultivated moss 33 and the fruits of the subtropical plant 50 are produced and sold as products. This can save energy and reduce running costs.

  As described above, the present invention makes it possible to cultivate mosses and subtropical plants using the exhaust heat constantly discharged from the Internet data center.

1 is an overall front view showing an embodiment of the present invention. It is a top view of the server room shown in FIG. It is a top view of the ceiling chamber and subtropical room shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Building 11 Subtropical room 12 Bottom chamber 13 Server room 14 Ceiling chamber 16 Server 17 Server rack 20 Waste heat passage 23 Air conditioner 42 Connection duct

Claims (7)

  The data center building is partitioned into a bottom chamber, a server room, and a ceiling chamber, a subtropical room for cultivating subtropical plants is constructed outside the building, and a server rack for storing servers in multiple stages is placed in front of the server room. Is installed in the server room, and a heat exhaust passage is formed at the back of the server rack. The exhaust heat passage is connected to the upper ceiling chamber, and the ceiling chamber is connected to the subtropical room via the connection duct. Connect the other side, supply the cold air from the air conditioner to the server room through the bottom chamber, flow the cold air supplied to the server room through the server rack to the exhaust heat passage, and warm the air heated by the servers in the server rack. A plant cultivation system using waste heat from a data center, characterized in that it is supplied to a subtropical room through a ceiling chamber and a connecting duct.   The data center exhaust heat utilization plant cultivation system according to claim 1, wherein server racks are installed back to back in the server room, and an exhaust heat passage extending vertically from the floor surface of the server room to the ceiling chamber is formed therebetween.   An air conditioner room is defined in the server room, an air conditioner is installed in the air conditioner room, a cold air outlet of the air conditioner is connected to the bottom chamber, and one of the warm air from the ceiling chamber is connected to the air conditioner room. The data center exhaust heat utilizing plant cultivation system according to claim 1 or 2, further comprising a warm air introduction port for introducing a section and an outside air introduction port for introducing outside air.   The data center waste heat utilization plant cultivation system according to claim 1 or 2, wherein a moss cultivation area for cultivating moss such as ganoderma and agarisk is formed in the ceiling chamber.   The data center exhaust heat utilization plant cultivation according to claim 1 or 2, wherein the subtropical room is formed of glass, and a warm air seepage duct connected to the connection duct is provided along the floor of the subtropical room. system.   The data center exhaust according to any one of claims 1 to 5, wherein a subtropical room is maintained in a subtropical atmosphere with a 30-38 ° C warm air supplied from the connection duct, and subtropical plants such as mango and papaya are cultivated in the subtropical room. Heat utilization plant cultivation system.   The data center waste heat utilization plant cultivation system of Claim 6 which further cultivates the moss grown in the moss cultivation area in the said ceiling chamber in a subtropical room.

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