JP2016211821A - Air conditioning system for server room - Google Patents
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Abstract
Description
本発明は、例えばデータセンターや電算センター等においてコンピュータやＩＴ機器等のサーバをサーバラックに収納して空調するサーバ室の空調システムに関する。 The present invention relates to an air conditioning system for a server room that accommodates a server such as a computer or an IT device in a server rack in a data center, a computer center, or the like and performs air conditioning.
この種の空調システムでは、サーバを収容したサーバラック群に対する冷却を効率的に行う目的で、サーバ室内に配列されたサーバラック列の間に交互に形成したコールドアイルとホットアイルを形成する所謂コールドアイル・ホットアイル空調方式によるものが主流となっている。 In this type of air conditioning system, a so-called cold aisle in which a cold aisle and a hot aisle are alternately formed between the server rack rows arranged in the server room for the purpose of efficiently cooling the server rack group containing the servers. The mainstream is the aisle / hot aisle air conditioning system.
例えば特許文献１に記載された空調システムでは、中央部に穴を開けた床板を備えたフリーアクセスフロアによって上層と下層を仕切ることで二重床とし、床板に代えて適宜の位置に格子状の開口を有するガラリを設置している。下層の空間に設けた空調機から冷気を吹き出して、フリーアクセスフロアを通してサーバを備えたサーバ室に冷気を供給している。 For example, in the air conditioning system described in Patent Document 1, a double floor is formed by dividing an upper layer and a lower layer by a free access floor provided with a floor plate having a hole in the center, and a lattice-like structure is provided at appropriate positions instead of the floor plate. A gallery with an opening is installed. Cold air is blown out from an air conditioner provided in a lower space, and cold air is supplied to a server room equipped with a server through a free access floor.
そして、床下の冷気の流れの状態を観測して乱れが生じている箇所において、フリーアクセスフロアの床板の下面に接続板を介して補助板を取り付けている。補助板を設置することで床下空間の断面を変化させて流れの状態を調節して乱れのない流れにし、冷気の必要な箇所に効率良く少ないエネルギーで送風するとしている。補助板は厚さを変更して、冷気の流れが左右に広がるのを限定したり、冷気の流線が乱れないように整流効果のある形状のもの等を必要に応じて選択できるとしている。 An auxiliary plate is attached to the lower surface of the floor plate of the free access floor via a connection plate at a location where turbulence occurs by observing the state of the cold air flow under the floor. By installing an auxiliary plate, the cross section of the underfloor space is changed to adjust the flow state so that there is no turbulence, and the air is efficiently blown to a place where cold air is needed. By changing the thickness of the auxiliary plate, it is possible to limit the flow of the cold air to the left and right, or to select a shape having a rectifying effect so that the flow line of the cold air is not disturbed.
ところで、従来のサーバ室の空調システムでは、コンピュータ機器等の進化によってラック当たりのサーバの負荷密度や電気容量が増大する傾向にあり、サーバ室の空調能力が不足していた。その一方で、空調機の増設はスペースの関係で困難であるため、従来の空調システムでは十分に冷却しきれなかった。
特許文献１に記載された空調システムでは、床下空間における床板やガラリの下側に接続板を介して厚さの異なる補助板を固定したり、ガラリ補助板を取り付けたりして、サーバ室への冷気の流れを制御するため、床下空間での冷気の吹き出し調整機構が複雑で部品点数が多く、コスト高になっていた。
By the way, in the conventional server room air conditioning system, the load density and electrical capacity of the server per rack tend to increase due to the evolution of computer equipment and the like, and the air conditioning capacity of the server room is insufficient. On the other hand, since it is difficult to increase the number of air conditioners due to space limitations, conventional air conditioning systems could not be cooled sufficiently.
In the air conditioning system described in Patent Document 1, an auxiliary plate having a different thickness is fixed to a lower side of a floor plate or a louver in the underfloor space via a connection plate, or a louver auxiliary plate is attached to the server room. In order to control the flow of the cold air, the mechanism for adjusting the blowout of the cold air in the underfloor space is complicated, has a large number of parts, and is expensive.
また、従来の空調システムでは、上層の床面に配列されたサーバラックの配列方向に沿って空調機から床下空間に高速で冷気が吹き出されるため、空調機に近接する側では高速の冷気流によってコールドアイルの空間内の空気が下方に引っ張られて、上層のサーバ室からフリーアクセスフロアを介して下層の床下空間に空気が流れる誘引現象が起きていた。 Further, in the conventional air conditioning system, since cold air is blown out from the air conditioner to the space under the floor along the arrangement direction of the server racks arranged on the upper floor surface, the high-speed cold air flow is close to the air conditioner. As a result, the air in the cold aisle space is pulled downward, causing an attraction phenomenon in which air flows from the upper server room to the lower lower floor space through the free access floor.
一方、床下空間における空調機から比較的遠い領域では、次第に冷気の吹き出し速度が低下するため、冷気はフリーアクセスフロアを通してサーバ室のコールドアイルに大量に流入してサーバラックを過剰に冷却する。そのため、空調機に近接する側のサーバラックに十分冷気が吹き出さない一方で、空調機から遠い側のサーバラックには冷却空気が必要以上に届きすぎるという冷却ムラの不具合が発生していた。そのため、サーバ室全体におけるサーバラックの冷却が十分できなかった。 On the other hand, in a region relatively far from the air conditioner in the underfloor space, the cool air blowing speed gradually decreases, so that a large amount of the cool air flows into the cold aisle of the server room through the free access floor and excessively cools the server rack. For this reason, the cooling air is not sufficiently blown out to the server rack on the side close to the air conditioner, while the cooling unevenness that the cooling air reaches the server rack far from the air conditioner more than necessary has occurred. For this reason, the server rack in the entire server room cannot be sufficiently cooled.
本発明は、上述した課題に鑑みてなされたものであり、多数配列されたサーバラックの冷却ムラを低減して、低コストでより均等に冷却できるようにしたサーバ室の空調システムを提供することを目的とする。 The present invention has been made in view of the above-described problems, and provides a server room air conditioning system that can reduce cooling unevenness of a large number of arranged server racks and can cool more uniformly at a low cost. With the goal.
本発明に係るサーバ室の空調システムは、室内をフリーアクセスフロアによって上層のサーバ室と下層の床下空間とに区分した二層構造とし、サーバ室に多数のサーバラックを配列し、各列のサーバラックの間に給気ゾーンと還気ゾーンを交互に取り付け、室内に設置した空調機から供給する冷却した空気を、床下空間からフリーアクセスフロアを通ってサーバ室の給気ゾーンに供給し、サーバラックを通過した空気が還気ゾーンを通って空調機に戻るように循環させるサーバ室の空調システムであって、給気ゾーンのフリーアクセスフロアは通気可能な孔開きの床パネルを配列して構成され、一部の床パネルに着脱可能なカーペットを設置して通気を阻止し、該カーペットの設置位置を変えることでサーバ室内の通気量のバランスを調整し、サーバラックの冷却温度を調整するようにしたことを特徴とする。
本発明では、給気ゾーンのフリーアクセスフロアに通気可能な孔開きの床パネルを配列し、一部の床パネルにカーペットを設置することで冷気が給気ゾーンへ通気することが阻止され、カーペットを設置しない孔開きの床パネルからのみ冷気が給気ゾーンに供給されてサーバラックを冷却する。そのため、空調機から供給される冷気の速度や多数のサーバラックの温度変化に応じて通気する床パネルと通気しない床パネルをカーペットの着脱によって選択することで、例えば給気ゾーンから床下空間へ空気が流れる誘引現象を阻止したり、比較的高温のサーバラック周辺には孔開きの床パネルを相対的に多く配置して供給する冷気量を増やして冷却したりできる。そのため、ファンやローカル空調機等を追加設置しなくても、多数配列されたサーバラックの冷却ムラを低減して、低コストでより均等に冷却できる。
An air conditioning system for a server room according to the present invention has a two-layer structure in which the room is divided into an upper server room and a lower floor space by a free access floor, and a large number of server racks are arranged in the server room. Air supply zones and return air zones are alternately installed between the racks, and the cooled air supplied from the air conditioners installed indoors is supplied from the underfloor space through the free access floor to the server room air supply zone. A server room air conditioning system that circulates the air that has passed through the rack so as to return to the air conditioner through the return air zone, and the free access floor of the air supply zone is configured by arranging vented perforated floor panels. A removable carpet is installed on some floor panels to block ventilation and adjust the balance of ventilation in the server room by changing the installation position of the carpet. Characterized in that to adjust the cooling temperature of the server racks.
According to the present invention, a perforated floor panel that can be ventilated is arranged on the free access floor of the air supply zone, and the carpet is installed on a part of the floor panels to prevent cold air from flowing to the air supply zone. Cooling air is supplied to the air supply zone only from the perforated floor panel where no server is installed to cool the server rack. Therefore, by selecting the floor panel that vents and the floor panel that does not vent according to the speed of the cool air supplied from the air conditioner and the temperature changes of many server racks by attaching and detaching the carpet, for example, air is supplied from the air supply zone to the under floor space. Can be prevented, or a relatively large number of perforated floor panels can be arranged around the relatively high-temperature server rack to increase the amount of cool air to be supplied for cooling. For this reason, even if a fan, a local air conditioner, and the like are not additionally installed, it is possible to reduce cooling unevenness of a large number of arranged server racks and to cool more uniformly at a low cost.
また、本発明に係るサーバ室の空調システムは、室内をフリーアクセスフロアによって上層のサーバ室と下層の床下空間とに区分した二層構造とし、サーバ室に多数のサーバラックを配列し、各列のサーバラックの間に給気ゾーンと還気ゾーンを交互に取り付け、室内に設置した空調機から供給する冷却した空気を、床下空間からフリーアクセスフロアを通ってサーバ室の給気ゾーンに供給し、サーバラックを通過した空気が還気ゾーンを通って空調機に戻るように循環させるサーバ室の空調システムであって、給気ゾーンのフリーアクセスフロアは通気可能な床パネルと通気しない床パネルとを備えており、空調機から比較的遠い領域に比較的近接した領域よりも通気しない床パネルを多く配置させたことを特徴とする。
本発明では、床下空間で空調機から高速で吹き出す冷気は空調機から遠い奥側の行き止まり付近に近づくと低速になるが、空調機から比較的遠い領域では通気しない床パネルを比較的多く設置したため冷気の一部は通気可能な床パネルから給気ゾーンに供給されるが、残りの冷気は床下空間に留まったり空調機側に戻ったりする。そのため、空調機に近接する側では、給気ゾーンから床下空間に空気が吸引される誘引現象が抑えられ、しかも通気可能な床パネルが多いため比較的多くの冷気がサーバ室の給気ゾーンに供給されてサーバラックを冷却するため、給気ゾーンのサーバラック全体をより均等に冷却することができる。
The server room air-conditioning system according to the present invention has a two-layer structure in which the room is divided into an upper-layer server room and a lower-layer floor space by a free access floor, and a plurality of server racks are arranged in the server room. Air supply zones and return air zones are alternately installed between the server racks, and the cooled air supplied from the air conditioners installed in the room is supplied from the underfloor space through the free access floor to the server room supply zone. An air conditioning system for a server room that circulates so that air that has passed through the server rack returns to the air conditioner through the return air zone, and the free access floor of the air supply zone includes a floor panel that is permeable and a floor panel that is not permeable to air. It is characterized in that a larger number of floor panels that do not vent than a region relatively close to a region far from the air conditioner are arranged.
In the present invention, the cold air blown out from the air conditioner at high speed in the underfloor space becomes low speed when approaching the dead end near the back side far from the air conditioner, but a relatively large number of floor panels that do not ventilate in a relatively distant area from the air conditioner are installed. A part of the cold air is supplied to the air supply zone from the floor panel that can be ventilated, but the remaining cold air stays in the space under the floor or returns to the air conditioner side. Therefore, on the side close to the air conditioner, the attraction phenomenon where air is sucked into the underfloor space from the air supply zone is suppressed, and since there are many floor panels that can be ventilated, a relatively large amount of cold air enters the air supply zone of the server room. Since the supplied server rack is cooled, the entire server rack in the air supply zone can be cooled more evenly.
また、本発明に係るサーバ室の空調システムは、室内をフリーアクセスフロアによって上層のサーバ室と下層の床下空間とに区分した二層構造とし、サーバ室に多数のサーバラックを配列し、各列のサーバラックの間に給気ゾーンと還気ゾーンを交互に取り付け、室内に設置した空調機から供給する冷却した空気を、床下空間からフリーアクセスフロアを通ってサーバ室の給気ゾーンに供給し、サーバラックを通過した空気が還気ゾーンを通って空調機に戻るように循環させるサーバ室の空調システムであって、給気ゾーンのフリーアクセスフロアは、通気可能な床パネルと通気しない床パネルとを備えており、ラック電気容量が大きいゆえ比較的高温のサーバラックを備えた領域には比較的低温のサーバラックを備えた領域よりも通気可能な床パネルを多く配置させたことを特徴とする。
本発明によれば、空調機から床下空間に吹出される冷気は、給気ゾーンの比較的高温のサーバラックを備えた領域では通気可能な床パネルが多いため比較的大量の冷気が給気ゾーンに供給されて高温のサーバラックを良く冷却し、また比較的低温のサーバラックを備えた領域では通気可能な床パネルが比較的少ないため比較的少量の冷気が給気ゾーンに供給されて低温のサーバラックを冷却する。これによって、給気ゾーンのサーバラック全体をより均等に冷却することができる。
The server room air-conditioning system according to the present invention has a two-layer structure in which the room is divided into an upper-layer server room and a lower-layer floor space by a free access floor, and a plurality of server racks are arranged in the server room. Air supply zones and return air zones are alternately installed between the server racks, and the cooled air supplied from the air conditioners installed in the room is supplied from the underfloor space through the free access floor to the server room supply zone. , A server room air conditioning system that circulates the air that has passed through the server rack so as to return to the air conditioner through the return air zone, and the free access floor of the air supply zone has a ventilable floor panel and a non-ventilated floor panel. Because of the large rack electrical capacity, the area with relatively high temperature server racks can ventilate more than the area with relatively low temperature server racks. Characterized in that is disposed more floor panels.
According to the present invention, the cool air blown out from the air conditioner to the under-floor space has a relatively large amount of cool air in the air supply zone because there are many floor panels that can be ventilated in a region having a relatively high temperature server rack. To cool the hot server racks well, and in areas with relatively cool server racks, there are relatively few floor panels that can be vented, so a relatively small amount of cool air is fed into the supply zone Cool down the server rack. As a result, the entire server rack in the air supply zone can be cooled more evenly.
また、通気可能な床パネルは孔開きの床パネルであり、通気しない床パネルは孔開きの床パネルに着脱可能なカーペットを設置したものと、通気用の孔なしの床パネルのいずれを用いてもよい。
本発明では、給気ゾーンのフリーアクセスフロアに孔開きの床パネルを敷き並べて一部の床パネルにはカーペットを載置して通気を阻止することで、残りの孔開きの床パネルを通して冷気を給気ゾーンに供給してサーバラックを冷却できる。そのため、１種類の床パネルでカーペットの有無の選択によって誘引現象を阻止したり比較的高温のサーバラックに冷気を集めたりして、給気ゾーン全体でより均等にサーバラックを冷却でき、ローコストでサーバ室の温度環境の調整ができる。
The floor panel that can be ventilated is a perforated floor panel, and the floor panel that is not ventilated can be either a perforated floor panel with a removable carpet or a floor panel without a vent hole. Also good.
In the present invention, perforated floor panels are laid out on the free access floor of the air supply zone, and carpet is placed on some floor panels to block airflow, thereby cooling air through the remaining perforated floor panels. The server rack can be cooled by supplying the air supply zone. For this reason, it is possible to cool the server rack more evenly in the entire supply zone by preventing the attraction phenomenon by selecting the presence or absence of carpet on one type of floor panel or collecting cool air in the server rack of relatively high temperature. The temperature environment of the server room can be adjusted.
また、給気ゾーンのフリーアクセスフロアに孔開きの床パネルと孔なしの床パネルを選択的に敷き並べて通気を調整することで、適宜位置に設置された孔開きの床パネルを通して冷気を給気ゾーンに供給し、孔のない床パネルでの冷気の供給を阻止することができて、サーバラックの冷却を調整できる。そのため、誘引現象を阻止したり比較的高温のサーバラックに冷気を集めたりして、給気ゾーン全体でより均等にサーバラックを冷却できる。 In addition, by selectively arranging a perforated floor panel and a non-perforated floor panel on the free access floor in the air supply zone and adjusting the ventilation, air is supplied through the perforated floor panel installed at an appropriate position. The cooling of the server rack can be adjusted by supplying to the zone and preventing the supply of cold air on the floor panel without holes. Therefore, the server rack can be cooled more evenly in the entire air supply zone by preventing the attraction phenomenon or collecting cool air in the relatively high temperature server rack.
本発明に係るサーバ室の空調システムは、給気ゾーンにおけるフリーアクセスフロアを構成する孔開きの床パネルの一部にカーペットを着脱して調整することで、給気ゾーンに供給する冷気の量を調整することができて、サーバ室のサーバラックの冷却をより均等に行うことができる。
また、本発明は、空調機から比較的遠い領域に比較的近接した領域よりも通気しない床パネルを多く配置させることで誘引現象を防いで、サーバラックの冷却をより均等に行うことができる。
また、本発明は、各サーバラックの温度が異なる場合でも比較的高温のサーバラックを備えた領域に比較的低温のサーバラックを備えた領域よりも通気可能な床パネルを多く配置させることで、高温のサーバラックへの冷気の供給を増やしてサーバラックの冷却をより均等に行うことができる。
The server room air-conditioning system according to the present invention adjusts the amount of cold air supplied to the air supply zone by attaching and detaching a carpet to a part of the perforated floor panel constituting the free access floor in the air supply zone. The server rack in the server room can be cooled more evenly.
Further, the present invention can prevent the attraction phenomenon by arranging more floor panels that do not vent than the area relatively close to the area relatively far from the air conditioner, and can cool the server rack more evenly.
Further, the present invention arranges more floor panels that can be ventilated in an area having a relatively high temperature server rack than an area having a relatively low temperature server rack even when the temperature of each server rack is different. The supply of cool air to the high-temperature server rack can be increased to cool the server rack more evenly.
また、本発明に係るサーバ室の空調システムによれば、床下空間内にファンやローカル空調機等を設置することなく、また空調機の容量や運転条件を変更しなくても、床パネルの通気性を調整することで、空調温度環境を変化させることができて冷却ムラを調整できるため、簡単且つ低廉にサーバラックの冷却効率を調整できる。 Further, according to the server room air conditioning system of the present invention, the ventilation of the floor panel can be achieved without installing a fan, a local air conditioner, or the like in the underfloor space, or without changing the capacity or operating conditions of the air conditioner. Since the air conditioning temperature environment can be changed and the cooling unevenness can be adjusted by adjusting the performance, the cooling efficiency of the server rack can be adjusted easily and inexpensively.
以下、本発明の実施形態によるサーバ室の空調システムについて添付図面により説明する。
（第一実施形態）
本発明の第一実施形態によるサーバ室の空調システムについて図１乃至図５に基づいて説明する。図１及び図２に示すように本実施形態によるサーバ室３の空調システムにおいて、室１は通風可能なフリーアクセスフロア２によって上層のサーバ室３と下層の床下空間４とに分かれた二重構造とされている。サーバ室３はコンピュータやその他のＩＴ機器等のサーバを収容したサーバラック５が設置されており、一列に配列されたサーバラック５が所定の間隔を開けて複数列配列されている。
Hereinafter, an air conditioning system for a server room according to an embodiment of the present invention will be described with reference to the accompanying drawings.
(First embodiment)
A server room air conditioning system according to a first embodiment of the present invention will be described with reference to FIGS. As shown in FIGS. 1 and 2, in the air conditioning system of the server room 3 according to the present embodiment, the room 1 is divided into an upper server room 3 and a lower floor space 4 by a free access floor 2 through which air can flow. It is said that. The server room 3 is provided with server racks 5 that accommodate servers such as computers and other IT devices, and the server racks 5 arranged in a row are arranged in a plurality of rows at predetermined intervals.
そして、図２に示すように、サーバ室３における各列のサーバラック５の間にコールドアイルとしての給気ゾーン７とホットアイルとしての還気ゾーン８とが交互に配列されている。給気ゾーン７は例えば両側の列のサーバラック５の上部が図示しない遮蔽板によって覆われることで区画されている。そのため、床下空間４からフリーアクセスフロア２を介して給気ゾーン７に供給された冷気は両側のサーバラック５の列に流入してサーバを冷却して熱交換し、高温となった空気は還気ゾーン８に排出されて天井側に送られる。
また、室１の一端部にはサーバ室３の天井部と床下空間４とにまたがって空調機室１２が設けられている。空調機室１２とサーバ室３及び床下空間４とは仕切り壁１１によって区画され、仕切り壁１１の上部にはサーバ室３の天井部と空調機室１２の上部とを連通する通気口１１ａが形成され、下部には空調機室１２の下端部に連通して床下空間４に送風口を設けた空調機１０が設置されている。
As shown in FIG. 2, a supply zone 7 as a cold aisle and a return air zone 8 as a hot aisle are alternately arranged between the server racks 5 in each row in the server room 3. The air supply zone 7 is partitioned by, for example, covering the upper portions of the server racks 5 on both sides with a shielding plate (not shown). Therefore, the cold air supplied from the underfloor space 4 to the air supply zone 7 through the free access floor 2 flows into the rows of the server racks 5 on both sides to cool the servers and exchange heat, and the hot air is returned. It is discharged to the air zone 8 and sent to the ceiling side.
An air conditioner room 12 is provided at one end of the room 1 so as to extend over the ceiling of the server room 3 and the underfloor space 4. The air conditioner room 12, the server room 3, and the underfloor space 4 are partitioned by a partition wall 11, and a vent 11 a that connects the ceiling of the server room 3 and the upper part of the air conditioner room 12 is formed in the upper part of the partition wall 11. In the lower part, an air conditioner 10 that communicates with the lower end of the air conditioner room 12 and has an air outlet in the underfloor space 4 is installed.
そして、床下空間４において、空調機１０はその送風口から吹き出された冷気が給気ゾーン７の下側をサーバラック５の配列方向に沿って送風されるように配置されている。そのため、サーバ室３において、還気ゾーン８から天井側に送られた高温の空気は仕切り壁１１の通気口１１ａから空調機室１２に吸引され、その下側で空調機１０によって冷気に置換されて床下空間４に強く吹き出される。なお、図１に示す例では、サーバー室３と空調機室１２を仕切り壁１１で仕切っているが、仕切り壁１１のない空調システムでもよい。 In the underfloor space 4, the air conditioner 10 is arranged such that the cold air blown out from the air blowing port is blown along the arrangement direction of the server racks 5 below the air supply zone 7. Therefore, in the server room 3, the high-temperature air sent from the return air zone 8 to the ceiling side is sucked into the air conditioner room 12 from the vent 11 a of the partition wall 11 and is replaced with cold air by the air conditioner 10 below the air. And blown strongly into the underfloor space 4. In the example shown in FIG. 1, the server room 3 and the air conditioner room 12 are partitioned by the partition wall 11, but an air conditioning system without the partition wall 11 may be used.
次に床下空間４とサーバ室３を仕切るフリーアクセスフロア２について説明する。フリーアクセスフロア２において両側にサーバラック５を配列した給気ゾーン７では、例えば図３（ａ）に示すように正方形板状で複数の孔を有する孔開き床パネル１４（以下、単に床パネル１４ということがある）を敷き詰めることで形成されている。床パネル１４は四角形板状で複数の孔を配列したパネル板１４ａとその下に設けた脚部１４ｂとを備えている。パネル板１４ａの孔の形状は任意である。図４に示すように、床パネル１４の上にはパネル板１４ａと同一形状のカーペット１５が載置されている。また、図３（ｂ）に孔なし床パネル１８を示す。孔なし床パネル１８は孔のないパネル板１８ａと脚部１８ｂとを備えており、パネル板１８ａは孔開き床パネル１４のパネル板１４ａと孔の有無を除いて同形同大とされている。第一実施形態や後述する第二実施形態において、カーペット１５の位置に孔なし床パネル１８を設置する構成を採用することもできる。
また、給気ゾーン７とサーバラック５以外の還気ゾーン８を含む周辺領域(網目模様で示す)では孔なし床パネル１８を設置する。後述する他の実施形態等の図でも同様とする。
Next, the free access floor 2 that partitions the underfloor space 4 and the server room 3 will be described. In the air supply zone 7 in which the server racks 5 are arranged on both sides of the free access floor 2, for example, as shown in FIG. 3A, a perforated floor panel 14 having a plurality of holes (hereinafter simply referred to as a floor panel 14). It is formed by spreading). The floor panel 14 has a rectangular plate shape and includes a panel plate 14a in which a plurality of holes are arranged, and leg portions 14b provided therebelow. The shape of the hole of the panel board 14a is arbitrary. As shown in FIG. 4, a carpet 15 having the same shape as the panel plate 14 a is placed on the floor panel 14. FIG. 3B shows a floor panel 18 without holes. The non-perforated floor panel 18 includes a panel plate 18a having no holes and a leg portion 18b. The panel plate 18a has the same shape and size as the panel plate 14a of the perforated floor panel 14 except for the presence or absence of holes. . In the first embodiment and the second embodiment to be described later, a configuration in which the floor panel 18 without holes is installed at the position of the carpet 15 can also be adopted.
Further, a floor panel 18 without holes is installed in a peripheral region (shown by a mesh pattern) including the return air zone 8 other than the air supply zone 7 and the server rack 5. The same applies to the drawings of other embodiments described later.
図４に示すように、床パネル１４はパネル板１４ａの孔を通して冷気を床下空間４からサーバ室３に送風可能であり、床パネル１４にカーペット１５を敷いたものは冷気供給停止の点で孔なしパネル１８と同等の効果を有している。パネル板１４ａの上にカーペット１５を敷くことで孔からの冷気の送風を阻止できる。そのため、床パネル１４に対するカーペット１５の載置の有無を選択することでサーバ室３への冷気の供給とその停止を選択できる。図４に示す例では、図３に示す４枚の孔開き床パネル１４のうちの３枚にカーペット１５を載置し、残りの一枚の床パネル１４の上にカーペット１５を載置しない。このように給気ゾーン７のフリーアクセスフロア２に敷き並べた複数の孔開き床パネル１４のうち任意の床パネル１４を選択してカーペット１５を載置することでサーバ室３に冷気を供給する床パネル１４を選択でき、サーバラック５への冷気供給量、供給位置を調整の上、効率的なサーバラック５の冷却ができる。 As shown in FIG. 4, the floor panel 14 can blow cool air from the underfloor space 4 to the server room 3 through the hole of the panel plate 14a, and the floor panel 14 in which the carpet 15 is laid has a hole in terms of stopping the cold air supply. The effect is the same as that of the none panel 18. By laying the carpet 15 on the panel board 14a, it is possible to prevent the blowing of cool air from the holes. Therefore, supply of cold air to the server room 3 and its stop can be selected by selecting whether or not the carpet 15 is placed on the floor panel 14. In the example shown in FIG. 4, the carpet 15 is placed on three of the four perforated floor panels 14 shown in FIG. 3, and the carpet 15 is not placed on the remaining one floor panel 14. In this way, by selecting an arbitrary floor panel 14 from the plurality of perforated floor panels 14 arranged on the free access floor 2 in the air supply zone 7 and placing the carpet 15, cold air is supplied to the server room 3. The floor panel 14 can be selected, and the server rack 5 can be efficiently cooled after adjusting the amount of cold air supplied to the server rack 5 and the supply position.
本実施形態によるサーバ室３の空調システムは上述した構成を備えており、次にその作用について説明する。
従来のサーバ室３の空調システムでは、給気ゾーン７におけるフリーアクセスフロア２の床パネル１４はすべて孔開きタイプのものを敷き並べた。この状態で空調機１０の送風口から冷気を床下空間４に供給すると、図５（ａ）に示すように、空調機１０に近接する側では冷気は高速で吹き出されるため、給気ゾーン７内の空気が冷気に引っ張られてサーバ室３から各床パネル１４を通って床下空間４に流れる誘引現象が起きる。そのため、この領域では給気ゾーン７に供給される冷気は小量で空調機１０に近接するサーバラック５の冷却は不十分になる。
一方、空調機１０から比較的遠い床下空間４では次第に冷気の速度が低下するため誘引現象は起きず、奥側に流れる冷気は複数の孔開き床パネル１４を通して給気ゾーン７に大量に流入してサーバラック５を過剰に冷却するというアンバランスな冷却効果しか得られない。
The air conditioning system of the server room 3 according to the present embodiment has the above-described configuration, and the operation thereof will be described next.
In the conventional air conditioning system of the server room 3, all floor panels 14 of the free access floor 2 in the air supply zone 7 are of the perforated type. If cold air is supplied to the underfloor space 4 from the air outlet of the air conditioner 10 in this state, the cold air is blown out at a high speed on the side close to the air conditioner 10 as shown in FIG. An attraction phenomenon occurs in which the air inside is pulled by cold air and flows from the server room 3 through the floor panels 14 to the underfloor space 4. Therefore, in this region, the amount of cool air supplied to the air supply zone 7 is small, and cooling of the server rack 5 adjacent to the air conditioner 10 is insufficient.
On the other hand, in the underfloor space 4 that is relatively far from the air conditioner 10, the speed of the cold air gradually decreases, so that the attraction phenomenon does not occur, and a large amount of cold air flowing to the back side flows into the air supply zone 7 through the plurality of perforated floor panels 14. Thus, only an unbalanced cooling effect of excessively cooling the server rack 5 can be obtained.
これに対し、本実施形態によるサーバ室３の空調システムでは、例えば図２に示すように、給気ゾーン７におけるフリーアクセスフロア２の孔開き床パネル１４のうち空調機１０から遠い側の床パネル１４に例えば千鳥状にカーペット１５を載置して一部の遠い側の床パネル１４を閉鎖し、空調機１０に近接する側の床パネル１４にはカーペット１５を載置しないものとする。 On the other hand, in the air conditioning system of the server room 3 according to the present embodiment, for example, as shown in FIG. 2, the floor panel far from the air conditioner 10 in the perforated floor panel 14 of the free access floor 2 in the air supply zone 7. For example, the carpet 15 is placed in a zigzag pattern on 14 to close some of the floor panels 14 on the far side, and the carpet 15 is not placed on the floor panel 14 on the side close to the air conditioner 10.
この状態で、空調機１０から高速で吹き出される冷気は、図５（ｂ）に示すように、床下空間４の奥側が行き止まりであり、しかも空調機１０から遠い側のフリーアクセスフロア２は床パネル１４の一部がカーペット１５で閉鎖されている。そのため、空調機１０から吹き出された冷気の速度が低下した奥側では、残りの孔開き床パネル１４から冷気が給気ゾーン７に供給され、その両側のサーバラック５をほどよく冷却する。
しかも、一部の冷気は床下空間４の奥側で滞留し、空調機１０に近接する側に戻る。そのため、空調機１０に近接する側で高速の冷気が吹き出されても誘引現象は起きない。また、空調機１０に近接する側ではフリーアクセスフロア２の孔開き床パネル１４はいずれもカーペット１５が設置されていないから、冷気は孔開き床パネル１４を通ってより多く給気ゾーン７に供給されて、その両側のサーバラック５を良く冷却する。
In this state, as shown in FIG. 5B, the cold air blown out from the air conditioner 10 has a dead end on the back side of the under-floor space 4, and the free access floor 2 far from the air conditioner 10 has a floor. A part of the panel 14 is closed with a carpet 15. Therefore, on the back side where the speed of the cool air blown out from the air conditioner 10 is reduced, the cool air is supplied from the remaining perforated floor panel 14 to the air supply zone 7, and the server racks 5 on both sides thereof are cooled moderately.
Moreover, a part of the cool air stays in the back side of the underfloor space 4 and returns to the side close to the air conditioner 10. Therefore, even if high-speed cold air is blown out on the side close to the air conditioner 10, the attraction phenomenon does not occur. Further, since the perforated floor panel 14 of the free access floor 2 is not provided with the carpet 15 on the side close to the air conditioner 10, more cold air is supplied to the air supply zone 7 through the perforated floor panel 14. Then, the server racks 5 on both sides are well cooled.
従って、空調機１０から床下空間４に高速で吹き出される冷気は空調機１０に近接する側と遠い側とでバランスよくフリーアクセスフロア２の孔開き床パネル１４を通ってサーバ室３に流入する。そのため、給気ゾーン７の両側に配列された各列のサーバラック５の全体に冷気が流入して均等に冷却できる。
そして、各サーバラック５を冷却した空気は熱交換して高温となって還気ゾーン８に排出されてサーバ室３の天井側に送られ、次いで仕切り壁１１の通気口１１ａを通って空調機室１２に供給されて空調機１０に戻される。
Therefore, the cool air blown out from the air conditioner 10 to the underfloor space 4 flows into the server room 3 through the perforated floor panel 14 of the free access floor 2 in a balanced manner on the side close to and far from the air conditioner 10. . Therefore, cold air flows into the entire server rack 5 in each row arranged on both sides of the air supply zone 7 and can be uniformly cooled.
And the air which cooled each server rack 5 is heat-exchanged, becomes high temperature, is discharged | emitted to the return air zone 8, is sent to the ceiling side of the server room 3, and then passes through the vent 11a of the partition wall 11, and is an air conditioner. It is supplied to the chamber 12 and returned to the air conditioner 10.
上述のように本第一実施形態によるサーバ室３の空調システムは、給気ゾーン７のフリーアクセスフロア２に孔開き床パネル１４を敷き並べてその上の適宜位置を選択してカーペット１５を載置し、床下空間４からサーバ室３の給気ゾーン７に供給される冷気の量を調整できるようにしたため、各列のサーバラック５の冷却ムラを低減できる。しかも１種類の床パネル１４で行うことができる。
また、本実施形態によれば、給気ゾーン７の空調機１０に近接する側の床パネル１４にカーペット１５を設けず、床パネル１４から遠い側の床パネル１４の一部をカーペット１５で覆って通気の一部を阻止したことで、空調機１０に近接する側での誘引現象を阻止して、給気ゾーン７に供給される冷気をより均等に調整して両側のサーバラック５を効率よく冷却できる。
As described above, the air conditioning system for the server room 3 according to the first embodiment places the perforated floor panel 14 on the free access floor 2 in the air supply zone 7 and selects the appropriate position thereon to place the carpet 15. In addition, since the amount of cold air supplied from the underfloor space 4 to the air supply zone 7 of the server room 3 can be adjusted, uneven cooling of the server racks 5 in each row can be reduced. Moreover, this can be done with one kind of floor panel 14.
Further, according to the present embodiment, the carpet 15 is not provided on the floor panel 14 on the side close to the air conditioner 10 in the air supply zone 7, and a part of the floor panel 14 on the side far from the floor panel 14 is covered with the carpet 15. By blocking a part of the ventilation, the attracting phenomenon on the side close to the air conditioner 10 is prevented, and the cold air supplied to the air supply zone 7 is adjusted more evenly to make the server racks 5 on both sides efficient. Can cool well.
（実施例）
次に上述した第一実施形態によるサーバ室３の空調システムについて行った解析例について実施例と比較例により図６から図１１によって説明する。
図６は実施例に示すサーバ室３における孔開き床パネル１４とカーペット１５の配列構造を示す平面図であり、図２と同様に給気ゾーン７における空調機１０から遠い側の床パネル１４にカーペット１５を例えば千鳥状に配列し、空調機１０に近い側の床パネル１４にカーペット１５を設置しない構成を採用した。しかも、サーバ室３内において仕切り壁１１によってサーバ室３や床下空間４と仕切られた空間内に設けた空調機１０はいずれも給気ゾーン７に対向しており、そのうちの中央の２つの空調機１０Ａは停止しており、他の空調機１０が故障したときのスペア用である。
図６に示す実施例の構造におけるサーバ室３の空調システム稼働時における温度変化の解析例を示すと図７のようになる。図７に示すサーバ室３におけるＡ−Ａ線に沿った即ち給気ゾーン７に沿ったサーバラック５の温度変化を示すと図８に示すようになる。なお、図７では温度分布を濃淡の色変化で示している。
(Example)
Next, analysis examples performed on the air conditioning system of the server room 3 according to the first embodiment described above will be described with reference to FIGS.
FIG. 6 is a plan view showing the arrangement structure of the perforated floor panel 14 and the carpet 15 in the server room 3 shown in the embodiment. As in FIG. 2, the floor panel 14 far from the air conditioner 10 in the air supply zone 7 is shown. For example, the carpets 15 are arranged in a zigzag pattern, and the carpet 15 is not installed on the floor panel 14 near the air conditioner 10. In addition, the air conditioner 10 provided in the space separated from the server room 3 and the underfloor space 4 by the partition wall 11 in the server room 3 is opposed to the air supply zone 7, and two air conditioners in the center of them are provided. The machine 10A is stopped and is used as a spare when another air conditioner 10 breaks down.
FIG. 7 shows an analysis example of the temperature change during the operation of the air conditioning system of the server room 3 in the structure of the embodiment shown in FIG. FIG. 8 shows the temperature change of the server rack 5 along the line AA in the server room 3 shown in FIG. 7, that is, along the air supply zone 7. In FIG. 7, the temperature distribution is indicated by shaded color changes.
一方、図９は比較例に示すサーバ室３における孔開き床パネル１４の配列構造を示す平面図であり、給気ゾーン７に配列した床パネル１４にカーペット１５を載置していない。なお、室１内におけるサーバ室３や床下空間４、空調機１０の配列は上述した実施例と同じである。
図９に示す比較例の構造におけるサーバ室３の空調システム稼働時における温度変化の解析例を示すと図１０のようになる。図１０に示すサーバ室３の空調システムにおけるＢ−Ｂ線に沿った即ち給気ゾーン７に沿ったサーバラック５の温度変化を示すと図１１に示すようになる。なお、図１０でも温度分布を濃淡の色変化で示している。
On the other hand, FIG. 9 is a plan view showing the arrangement structure of the perforated floor panel 14 in the server room 3 shown in the comparative example, and the carpet 15 is not placed on the floor panel 14 arranged in the air supply zone 7. The arrangement of the server room 3, the underfloor space 4, and the air conditioner 10 in the room 1 is the same as that in the above-described embodiment.
FIG. 10 shows an analysis example of the temperature change during the operation of the air conditioning system in the server room 3 in the structure of the comparative example shown in FIG. FIG. 11 shows the temperature change of the server rack 5 along the line BB in the air conditioning system of the server room 3 shown in FIG. 10, that is, along the air supply zone 7. Note that FIG. 10 also shows the temperature distribution with shaded color changes.
図８に示す実施例では、各給気ゾーン７のサーバラック５が並ぶ方向の温度分布が、各ラック全体で２０℃〜２７℃程度に保持されており、冷却効果が高く温度ムラも少ない。図１１に示す比較例では誘引現象の影響もあって冷却供給量のバランスが悪く、給気ゾーンの温度分布で温度ムラが大きくなる傾向があった。 In the embodiment shown in FIG. 8, the temperature distribution in the direction in which the server racks 5 of each air supply zone 7 are arranged is maintained at about 20 ° C. to 27 ° C. throughout the racks, and the cooling effect is high and the temperature unevenness is small. In the comparative example shown in FIG. 11, the balance of the cooling supply amount is poor due to the influence of the attraction phenomenon, and the temperature unevenness tends to increase in the temperature distribution of the air supply zone.
なお、本発明によるサーバ室３の空調システムは、上述の実施形態に限定されるものではなく、その要旨を逸脱しない範囲で種々の変更や置換等が可能であり、これらの場合も本発明の技術的範囲に含まれる。以下に本発明の変形例について上述した実施形態と同一または同様な部分、部材には同一の符号を用いて説明する。 The air conditioning system for the server room 3 according to the present invention is not limited to the above-described embodiment, and various modifications and replacements are possible without departing from the scope of the present invention. Included in the technical scope. In the following, modifications of the present invention will be described using the same reference numerals for the same or similar parts and members as those of the above-described embodiment.
（第二実施形態）
次に本発明の第二実施形態によるサーバ室３の空調システムについて説明する。
(Second embodiment)
Next, an air conditioning system for the server room 3 according to the second embodiment of the present invention will be described.
図１２に示すサーバ室３の空調システムでは、給気ゾーン７で対向するサーバラック５の一部が他のサーバラック５よりも電気容量が大きい高負荷ラックのために高温の傾向があるものとし、これらの高温のサーバラック５を符号５Ｋで表すものとする。この場合、給気ゾーン７のフリーアクセスフロア２において高温のサーバラック５Ｋの付近に孔開き床パネル１４を多く配列し、床下空間４からサーバ室３への通風性を上げるようにする。
さらに、空調機１０に対向する給気ゾーン７において、高温のサーバラック５Ｋの領域を挟んで空調機１０に近接する側と空調機１０から遠い側とで孔開き床パネル１４と孔なし床パネル１８（またはカーペット１５を敷いた穴開きパネル１４）を例えば千鳥状に配列する構成とする。
In the air conditioning system of the server room 3 shown in FIG. 12, it is assumed that a part of the server racks 5 facing each other in the air supply zone 7 tends to be hot because of a high load rack having a larger electric capacity than the other server racks 5. These high-temperature server racks 5 are denoted by reference numeral 5K. In this case, a large number of perforated floor panels 14 are arranged in the vicinity of the high-temperature server rack 5K on the free access floor 2 in the air supply zone 7 so as to improve the ventilation performance from the underfloor space 4 to the server room 3.
Further, in the air supply zone 7 facing the air conditioner 10, the perforated floor panel 14 and the holeless floor panel are located on the side close to the air conditioner 10 and the side far from the air conditioner 10 across the region of the high-temperature server rack 5K. 18 (or the perforated panel 14 on which the carpet 15 is laid) is arranged in a staggered manner, for example.
このような構成を採用したサーバ室３の空調システムでは、空調機１０から高速で床下空間４に吹き出される冷気は空調機１０から遠い側では孔開き床パネル１４と孔なし床パネル１８（またはカーペット１５を敷いた穴開きパネル１４）が交互に配列され且つその奥側が行き止まりであるため、一部はフリーアクセスフロア２の孔開き床パネル１４からサーバ室３の給気ゾーン７に供給されて各サーバラック５を適度に冷却する。また、残りの冷気は空調機１０側に戻されるため、孔開き床パネル１４と孔なし床パネル１８（またはカーペット１５を敷いた穴開きパネル１４）を配列した空調機１０に近接する側でも誘引現象を抑制して冷気が孔開き床パネル１４から給気ゾーン７に供給されて各サーバラック５を適度に冷却する。 In the air conditioning system of the server room 3 adopting such a configuration, the cold air blown from the air conditioner 10 to the underfloor space 4 at a high speed is a perforated floor panel 14 and a perforated floor panel 18 (or on the side far from the air conditioner 10). Since the perforated panels 14) laid with the carpet 15 are alternately arranged and the back side thereof is a dead end, a part is supplied from the perforated floor panel 14 of the free access floor 2 to the air supply zone 7 of the server room 3. Each server rack 5 is cooled appropriately. Further, since the remaining cold air is returned to the air conditioner 10 side, it is also attracted on the side close to the air conditioner 10 in which the perforated floor panel 14 and the perforated floor panel 18 (or the perforated panel 14 covered with the carpet 15) are arranged. The phenomenon is suppressed and cold air is supplied from the perforated floor panel 14 to the air supply zone 7 to cool each server rack 5 appropriately.
一方、これら空調機１０に近接する側と遠い側の間の高温のサーバラック５Ｋの領域では、フリーアクセスフロア２に孔開き床パネル１４だけが配列されているために比較的大量の冷気が床下空間４から給気ゾーン７に供給されて、比較的高温のサーバラック５Ｋに流入して効率よく冷却する。そのため、給気ゾーン７の全体において比較的高温のサーバラック５Ｋを含めてその前後のサーバラック５も効率良く冷却し、全体にほぼ均等に冷却することができる。 On the other hand, in the region of the high-temperature server rack 5K between the side closer to and far from these air conditioners 10, only the perforated floor panels 14 are arranged on the free access floor 2, so that a relatively large amount of cold air is generated under the floor. The air is supplied from the space 4 to the air supply zone 7 and flows into the server rack 5K having a relatively high temperature to be efficiently cooled. Therefore, the server racks 5 before and after the relatively high temperature server rack 5K in the entire air supply zone 7 can be efficiently cooled and can be cooled almost uniformly.
なお、図１２に示す給気ゾーン７におけるフリーアクセスフロア２の全体に孔開き床パネル１４を敷き並べ、孔なし床パネル１８に対応する位置にカーペット１５を千鳥状に載置してもよい。
また、上述した各実施形態で説明した孔空き床パネル１４とカーペット１５の組み合わせ、孔空き床パネル１４と孔なし床パネル１８の組み合わせは一例にすぎず、本発明は給気ゾーン７における多数のサーバラック５の温度変化に応じて孔空き床パネル１４とカーペット１５の組み合わせ、孔空き床パネル１４と孔なし床パネル１８の組み合わせを任意の配列に設定して、各サーバラック５を均等に冷却することができる。
上述の実施形態では室１の一端部に空調機室１２を設けたケースについて説明したが、これに限定されることなく、例えば室１の両端部に空調機室１２を設置してもよい。
In addition, the perforated floor panel 14 may be laid out on the entire free access floor 2 in the air supply zone 7 shown in FIG. 12, and the carpets 15 may be placed in a staggered manner at positions corresponding to the non-perforated floor panel 18.
Further, the combination of the perforated floor panel 14 and the carpet 15 and the combination of the perforated floor panel 14 and the non-perforated floor panel 18 described in the above-described embodiments are merely examples, and the present invention provides a large number of the air supply zones 7. The combination of the perforated floor panel 14 and the carpet 15 and the combination of the perforated floor panel 14 and the non-perforated floor panel 18 are set in an arbitrary arrangement according to the temperature change of the server rack 5, and each server rack 5 is cooled evenly. can do.
In the above-described embodiment, the case where the air conditioner room 12 is provided at one end of the room 1 has been described. However, the present invention is not limited to this, and the air conditioner room 12 may be installed at both ends of the room 1, for example.
１ 室
２ フリーアクセスフロア
３ サーバ室
４ 床下空間
５ サーバラック
７ 給気ゾーン(コールドアイル)
８ 還気ゾーン（ホットアイル）
１０ 空調機
１２ 空調機室
１４ 孔開き床パネル
１５ カーペット
１８ 孔なし床パネル
1 room 2 free access floor 3 server room 4 under floor space 5 server rack 7 air supply zone (cold aisle)
8 Return Air Zone (Hot Isle)
10 Air Conditioner 12 Air Conditioner Room 14 Perforated Floor Panel 15 Carpet 18 No Hole Floor Panel
Claims (5)
前記サーバ室に多数のサーバラックを配列し、各列のサーバラックの間に給気ゾーンと還気ゾーンを交互に取り付け、
前記室内に設置した空調機から供給する冷却した空気を、前記床下空間からフリーアクセスフロアを通って前記サーバ室の給気ゾーンに供給し、前記サーバラックを通過した空気が前記還気ゾーンを通って前記空調機に戻るように循環させるサーバ室の空調システムであって、
前記給気ゾーンのフリーアクセスフロアは通気可能な孔開きの床パネルを配列して構成され、一部の前記床パネルに着脱可能なカーペットを設置して通気を阻止し、該カーペットの設置位置を変えることで前記サーバラックの冷却温度を調整するようにしたことを特徴とするサーバ室の空調システム。 The room has a two-layer structure that is divided into an upper server room and a lower floor space by a free access floor.
A number of server racks are arranged in the server room, and an air supply zone and a return air zone are alternately mounted between the server racks in each row,
The cooled air supplied from the air conditioner installed in the room is supplied from the underfloor space to the supply zone of the server room through the free access floor, and the air passing through the server rack passes through the return air zone. A server room air conditioning system that circulates back to the air conditioner,
The free access floor of the air supply zone is configured by arranging a perforated floor panel that can be ventilated, and a removable carpet is installed on a part of the floor panel to prevent ventilation, and the installation position of the carpet is determined. An air conditioning system for a server room, wherein the cooling temperature of the server rack is adjusted by changing the temperature.
前記サーバ室に多数のサーバラックを配列し、各列のサーバラックの間に給気ゾーンと還気ゾーンを交互に取り付け、
前記室内に設置した空調機から供給する冷却した空気を、前記床下空間からフリーアクセスフロアを通って前記サーバ室の給気ゾーンに供給し、前記サーバラックを通過した空気が前記還気ゾーンを通って前記空調機に戻るように循環させるサーバ室の空調システムであって、
前記給気ゾーンのフリーアクセスフロアは通気可能な床パネルと通気しない床パネルとを備えており、前記空調機から比較的遠い領域に比較的近接した領域よりも前記通気しない床パネルを多く配置させたことを特徴とするサーバ室の空調システム。 The room has a two-layer structure that is divided into an upper server room and a lower floor space by a free access floor.
A number of server racks are arranged in the server room, and an air supply zone and a return air zone are alternately mounted between the server racks in each row,
The cooled air supplied from the air conditioner installed in the room is supplied from the underfloor space to the supply zone of the server room through the free access floor, and the air passing through the server rack passes through the return air zone. A server room air conditioning system that circulates back to the air conditioner,
The free access floor of the air supply zone includes a floor panel that allows ventilation and a floor panel that does not allow ventilation, and more floor panels that are not ventilated are disposed than areas that are relatively close to areas far from the air conditioner. A server room air conditioning system characterized by that.
前記サーバ室に多数のサーバラックを配列し、各列のサーバラックの間に給気ゾーンと還気ゾーンを交互に取り付け、
前記室内に設置した空調機から供給する冷却した空気を、前記床下空間からフリーアクセスフロアを通って前記サーバ室の給気ゾーンに供給し、前記サーバラックを通過した空気が前記還気ゾーンを通って前記空調機に戻るように循環させるサーバ室の空調システムであって、
前記給気ゾーンのフリーアクセスフロアは、通気可能な床パネルと通気しない床パネルとを備えており、比較的高温のサーバラックを備えた領域には比較的低温のサーバラックを備えた領域よりも前記通気可能な床パネルを多く配置させたことを特徴とするサーバ室の空調システム。 The room has a two-layer structure that is divided into an upper server room and a lower floor space by a free access floor.
A number of server racks are arranged in the server room, and an air supply zone and a return air zone are alternately mounted between the server racks in each row,
The cooled air supplied from the air conditioner installed in the room is supplied from the underfloor space to the supply zone of the server room through the free access floor, and the air passing through the server rack passes through the return air zone. A server room air conditioning system that circulates back to the air conditioner,
The free-access floor of the air supply zone includes a floor panel that allows ventilation and a floor panel that does not allow ventilation, and an area having a relatively high temperature server rack is more than an area having a relatively low temperature server rack. An air conditioning system for a server room, wherein a large number of ventable floor panels are arranged.
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