U.S. patent application number 10/811147 was filed with the patent office on 2004-12-09 for data center.
Invention is credited to Blumberg, Marvin R..
Application Number | 20040244310 10/811147 |
Document ID | / |
Family ID | 33493141 |
Filed Date | 2004-12-09 |
United States Patent
Application |
20040244310 |
Kind Code |
A1 |
Blumberg, Marvin R. |
December 9, 2004 |
Data center
Abstract
This application relates to improvements to data centers,
including protection from: (1) vandalism, (2) high winds, (3)
earthquake, (4) storms, (5) water used for cooling or fire
suppression, and (6) explosions emanating from inside or outside of
the building.
Inventors: |
Blumberg, Marvin R.;
(Bethesda, MD) |
Correspondence
Address: |
JACOBSON HOLMAN PLLC
400 SEVENTH STREET N.W.
SUITE 600
WASHINGTON
DC
20004
US
|
Family ID: |
33493141 |
Appl. No.: |
10/811147 |
Filed: |
March 29, 2004 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
|
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60458044 |
Mar 28, 2003 |
|
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Current U.S.
Class: |
52/79.1 ;
52/167.1 |
Current CPC
Class: |
E04H 9/06 20130101; H05K
7/18 20130101 |
Class at
Publication: |
052/079.1 ;
052/167.1 |
International
Class: |
H05K 010/00; E04B
001/98 |
Claims
I claim:
1. A data center comprising: a building, an explosion protection
system surrounding the building, a primary roof of the building, a
secondary roof inside the building forming a mezzanine deck, said
mezzanine deck being located below said primary roof and spanning
an interior of the building, an air handling unit located below
said mezzanine deck and above a floor of the building, and a
distribution system for water and communication lines being located
below the floor of the building.
2. The data center as claimed in claim 1, wherein the building
includes a plurality of rooms interconnected by a corridor.
3. The data center as claimed in claim 2, wherein the distribution
system is located below the corridor.
4. The data center as claimed in claim 3, wherein a ceiling of the
corridor defines a space located below the mezzanine deck, the air
handling unit is located in the space.
5. The data center as claimed in claim 2, wherein a plurality of
air handling units are connected to each of the rooms to provide at
least two times of air cooling capacity to each of the rooms in the
event of failure of one of the air handling units.
6. The data center as claimed in claim 1, wherein the explosion
protection system includes a plurality of bollards surrounding the
building.
7. The data center as claimed in claim 1, wherein condensate from
the air handling unit is communicated to the distribution
system.
8. The data center as claimed in claim 1, wherein the distribution
system further includes a five suppression system.
9. The data center as claimed in claim 1, wherein the distribution
system further includes a chilled water supply line and a chilled
water return line.
10. The data center as claimed in claim 9, wherein the chilled
water supply line and the chilled water return line are connected
by valves to a bypass water line for use in the event of
maintenance or failure of one of the chilled water supply line and
the chilled water return line.
Description
This application claims priority from and the benefit of U.S.
Provisional Application Ser. No. 60/458,044, filed on Mar. 28,
2003, hereby incorporated in its entirety by reference.
FIELD OF THE INVENTION
[0001] This application relates to improvements to data centers,
including protection from: (1) vandalism, (2) high winds, (3)
earthquake, (4) storms, (5) water or gas used for cooling or fire
suppression, and (6) explosions emanating from inside or outside of
the building.
BACKGROUND OF THE INVENTION
[0002] A data center is a facility designed to house computer
equipment (servers, routers, etc.) The computer equipment is used
to store data, receive data from other computers and send data to
other computers located inside and outside of the facility. The
data is transmitted through copper and fiber optic transmission
lines. In order for the data center to have a high level of
reliability, all aspects of the design of the data center are
important.
[0003] The physical security includes protection for: (1)
electrical, mechanical, and computer equipment, (2) the power
distribution system, (3) the copper and fiber optic distribution
system, and (4) pipes and ducts for the mechanical system.
[0004] The security system should provide protection from: (1)
vandalism, (2) high winds, (3) earthquake, (4) storms, (5) water
used for cooling or fire suppression, and (6) explosions emanating
from inside or outside of the building.
[0005] The reliability of the design is enhanced by redundancy so
that if there is an equipment failure, another piece of equipment
will function without delay to replace it. The reliability of the
data center is also improved by the compartmentalization of the
design so that if there is an equipment failure, the impact of the
failure is limited in scope. Reliability is also improved by having
a design which makes a fast recovery possible, such as a design
which makes the quick and easy replacement of the equipment (or a
part within the equipment) possible.
[0006] The reliability of the design is also enhanced by having a
design which attempts to eliminate a shut down because of a single
point of failure. However, if there is a single point of failure,
it is important that the component causing the failure is (1) very
unlikely to fail, (2) the component can be replaced quickly if it
does fail, and (3) the impact of such a failure is limited.
SUMMARY OF THE INVENTION
[0007] The design of the present invention incorporates the aspects
described above (physical security, redundancy,
compartmentalization, fast recovery, and the elimination of the
"single point of failure") in an effort to achieve the highest
level of reliability.
[0008] The following discussion of the mechanical system, the power
distribution system, and the fiber optic distribution system are
preferably in a building where the roof and outer walls are
protected to withstand the impact of high winds or a blast from an
explosive. However, there are aspects to the design which would be
advantageous to buildings without such protection. For example, the
mechanical system requires less floor space.
[0009] In the description of the design that follows it is assumed
that there are one or more corridors with rooms on both sides of
the corridor. (The design also applies if there are rooms on only
one side of the corridor or if computer racks are located in a
single large room.)
[0010] Racks which hold computer servers are placed in the
plurality of rooms. It is necessary to supply these rooms with the
following:
[0011] (1) Cooling to offset the heat generated by the servers and
other electronic equipment.
[0012] (2) Electrical power to the electronic equipment.
[0013] (3) Fiber optic and copper lines to the equipment for the
transmission of data.
[0014] (4) Humidity control to the room to control static
electricity.
[0015] (5) Fire suppression system which may include INNERGIN.TM.
breathable gas fire suppression system.
[0016] These and other objects of the invention, as well as many of
the intended advantages thereof, will become more readily apparent
when reference is made to the following description taken in
conjunction with the accompanying drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
[0017] FIGS. 1A and 1B show the design of a corridor space for
mechanical equipment, distribution of chilled water to mechanical
equipment, location of electric cable which supplies power to the
power distribution units (PDUs) which are connected to servers, and
fiber optic lines which are connected to the servers located in the
rooms.
[0018] FIG. 1C is an alternate design of a distribution system,
similar to FIG. 1A.
[0019] FIG. 2 shows a plan view of air handling units (AHU) in the
corridor and the ducts which supply the rooms on each side of the
corridor.
[0020] FIGS. 3A and FIG. 3B show a plan view and vertical section
of an AHU.
[0021] FIGS. 4A and 4B show a vertical section and a plan view,
respectively, of a six foot wide and eight foot high (or higher)
central corridor and lateral room enclosures.
[0022] FIG. 5 shows a plan view of AHUs assigned to four different
room configurations.
[0023] FIG. 6 is a plan view of a piping diagram with a third pipe
provided for maintenance or replacement of either one of the other
two pipes.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0024] In describing a preferred embodiment of the invention
illustrated in the drawings, specific terminology will be resorted
to for the sake of clarity. However, the invention is not intended
to be limited to the specific terms so selected, and it is to be
understood that each specific term includes all technical
equivalents which operate in a similar manner to accomplish a
similar purpose.
[0025] A space 12 (FIG. 1A) is located above the corridor 1 between
the foil coiling unit (FCU) or Air Handling Unit (AHU) 8A having a
coil 80, a fan 82 and filter 84 (as shown in FIGS. 3A and 3B).
Between the walls 3A, 3B is a ceiling tile and grid system 11 of
the corridor sufficient to provide the required return air to the
AHU in space 12.
[0026] A plurality of individual FCUs could be replaced by a large
FCU located at ground floor level which would blow cool air into a
ducted system 73 going down the space where AHU 8A is located
between walls 3A, 3B, ceiling roof 12 and tile and grid system
11.
[0027] Below the raised floor 13 of the corridor 1 there is a space
15, FIG. 1A, through which pipes can be located and connected to
the risers in the walls or to a pipe connected to an AHU located on
a raised floor or concrete deck (see FIG. 1A and FIG. 1B). Also,
connecting pipes extend from the chilled water supply pipe 16 and
chilled water return pipe 18, FIGS. 1A and 1B.
[0028] In the alternative the fiber optic trays 61A, 61B and
cylinders for the fire suppression system 51A and 51B can be
located above the mezzanine deck 12 on both sides of the corridor 1
as shown in FIG. 1A and 1C. In FIG. 1B pipes cross the corridor 1
and are connected to risers which are located in corridor walls 3A
and 3B. FIG. 1A also includes a condensate opening 55 from a pipe
extending down a wall for the AHU.
[0029] FIG. 1B shows the staggered connections 19 from the chilled
water return (CWR) pipe 16 to the riser 3A and from the chilled
water supply pipe 18 to the riser 3A. FIG. 1B also shows fiber
optic line 21 from the conduit extending to the conduit box 23A
passing through the conduit to the riser 24 and into adjacent room
5. This fiber optic line extends into adjacent room 5 from the
risers in the wall. The fiber optic line 23C, FIG. 1B, is for the
room 4 across the corridor from room 5. Cylinder 51B, FIG. 1B, is
for fire suppression for room 4.
[0030] FIG. 1A shows a roof structure 12 which spans the corridor
and the rooms 4 and 5 on both sides of the corridor 1. The space
above the roof structure 12 and below building roof 90 is referred
to as the mezzanine deck and above the mezzanine deck is the main
roof 90 of the building. There is limited access to the mezzanine
deck. Motion detectors and closed circuit television monitors
provide continuous surveillance. The mezzanine deck also serves as
a secondary roof to protect against roof leakage from the primary
roof 90. Roof structure slope 12 is a 1) blast protection, 2)
secondary rain protection and 3) covering for fiber and electrical
distribution cylinders.
[0031] The corridor walls 3A and 3B enclose the sides of the
corridor. Below the roof structure 12, conduits 6 carry the power
cable from the uninterrupted power supply (UPS) units to the power
distribution units (PDU) and then to each room, e.g. rooms 4 and 5,
for powering lighting and critical load including servers, routes,
etc., where the servers in racks 7 (FIG. 2) and other electronic
equipment are placed.
[0032] The AHU 8A, FIG. 1A, is located below the conduit 6. The AHU
8A abuts corridor wall 3A, and supplies cool air to the room 5
through the supply air grill 9. The return air transfer grill 10
permits air to return from room 5 to the AHU 8A. The ceiling tile
and grid system 11 along with the walls 3A and 3B, the corridor 1,
the space below the AHU and the space between the fan coil units
(FCU) create a return air space which is required for the cooling
unit.
[0033] The cooling capacity of the AHU is determined by the size of
the motor and fan, the cooling capacity of the coils, and the
volume of air that can be returned to the AHU. The volume of air
that can be returned to the FCU is determined as shown in FIG. 3A
by calculating the volume of air available in the space between the
bottom of the structure and the top of ceiling tile and grid system
11 and the width of the space, from center to center, between the
air handling units.
[0034] The condensate drain 55 is located at the bottom of the
corridor. The condensate drain drains any water that gets into the
corridor. There is a small space 56 between the corridor walls and
the raised floor to allow for any water that gets into the corridor
to drain.
[0035] FIGS. 4A, 4B show a vertical section and a plan view
section, respectively, of a corridor 6 feet wide and approximately
8 feet or more high from the ceiling grid 11 to the floor 17. A
four ton FCU 8A is located between the power conduits 6 and the
ceiling tile and grid system 11. There are six racks 16 in room 4
in FIGS. 2, 4A, 4B and 5. Typically, each rack, in this example,
requires 20 amps at 120 volts (120V.times.20A=2400 watts =2.4 KVA)
(1 ton =12,000 BTU) (heat of 1 KVA =3416 BTU) (2.4 KVA requires
8116 BTU). One ton of cooling will therefore cool 1 1/2 racks.
[0036] Therefore, the six racks at 20 amps per rack in room 4 each
require four tons of cooling. The FCU in FIG. 1A is a four ton
unit. This unit is 48 1/2 inches on the side and 24 inches across
the front (the supply register side).
[0037] Two of these units are shown in FIG. 5, designated for room
4 and two of these units are shown designated for room 5. Rooms 4
and 5 each have available two, four ton units for a total of eight
tons. This equates to full redundancy if each rack is using only 20
amps at 120 volts. If each rack is using 40 amps then in the event
of a failure of one of the AHUs, a fast recovery is necessary.
[0038] The components in an AHU are a motor 86 connected to a fan
82 and a cooling coil 80. These components have a low failure rate
and can be quickly replaced if the unit has valves for the quick
removal of the cooling coil and replacement parts for the motor.
Extra fans and cooling coils are kept on hand. In addition,
monitoring of the temperature in the room and monitoring of the
other parts should alert personnel to projected failure to minimize
the impact of such a failure.
[0039] FIG. 5 shows a top view of the AHUs assigned to rooms 4, 5,
6 and 7. The arrows show the direction of the air through the
units. If each of the units is four tons then eight tons are
assigned to each room.
[0040] The rooms can be subdivided by a wall 71 into two rooms,
e.g., see FIG. 5, rooms 7A and 7B. In that case, each room could
have either one or two, four ton AHUs. If each room is not so
subdivided, shown to be approximately 10 feet.times.16 feet
(including partitions) and if subdivided the two rooms would each
be approximately 5 feet.times.16 feet and each room could have
assigned to it one, four ton AHU. FIG. 5 shows that when rooms 4
and 6 are combined by removal of wall 72, sixteen racks are placed
in the space (an increase of four racks).
[0041] As shown in FIG. 5, room 5 has six racks. Two KVAs can be
supplied to each rack with one four ton AHU. With two, four ton
units to each room, 10 feet.times.16 feet four KVAs can be supplied
to each rack or the second two ton unit can be used to supply A.C.
"back up" for the room.
[0042] The building is surrounded by bollards 50 at a standoff
distance of a minimum of 90 feet from the building. Examples of
bollards 50 are shown on one side of the building only in FIG. 5.
It is understood that the bollards 50 would surround the
building.
[0043] The bollards are built to the highest Department of Defense
(DOD) standard. At that standoff distance, the buildings will
withstand a blast from 1000 pounds of TNT on a 5000 pound truck
moving at 50 miles per hour. The brick exterior of the building is
backed up by 12 inch reinforced concrete masonry unit (CMU) with
grout in the CMU cavities. The interior walls of the rooms are
built of 8 inch and 12 inch CMUs which are reinforced with steel
bars and the CMU cavities are filled with grout. The mezzanine deck
12 is built of steel and concrete so that the interior of the
building is protected against blast.
[0044] The building is built in a highly secure manner. This
physical security provides security to the AHU, the power
distribution units, the uninterruptible power supply, the
batteries, the switch gear, the computers, routers and other
electronic equipment, the power distribution system, the fiber
distribution system, the copper distribution system (for data), the
chilled water supply and return pipes, the fire suppression system
and all the other equipment protected by the walls and roof of the
building.
[0045] The system disclosed herein is appropriate for a building
designed and built to the concept disclosed for a building
converted to a data center. For instance, a building with an
interior space 22 feet in height can have an additional mezzanine
floor added to accommodate the tanks for a fire suppression system
and the electrical and fiber distribution system described
herein.
[0046] In an existing building, preferably, existing or new
construction would have a roof sloping at a 2% grade to help carry
off rainwater. The mezzanine deck may be built parallel to the
existing roof (i.e., the same slope) approximately 5 feet below the
existing roof and can be built of steel and concrete (a composite
deck). Twelve inch steel reinforced concrete masonry units can be
added to the inside of the building perimeter and shear walls can
also be built of twelve inch CMU. The bollards, the secondary roof,
the exterior walls and the shear walls will protect the building
against the blast described above.
[0047] The rooms for the servers may also be built of reinforced
CMU. This will give the equipment in these rooms further protection
against a satchel charge in the interior or near the exterior of
the building. The concrete slab of the existing building can be cut
and a trench built so that the chilled water pipes and fiber optic
could be installed.
[0048] The cylinders for the gas fire suppression may be placed on
the secondary roof directly above the rooms that will receive the
gas in the event of a fire or in the trench below the raised floor
as shown in FIG. 1A and 1B. In either case, the gas will be
confined to the room for which it is designated which gives
additional protection against putting too much gas into the
room.
[0049] The chilled water supply pipes are designed so that valves
may be closed which prevent water from flowing through them. The
water can be drained from them and then a leak can be repaired.
When these valves are closed, other valves can be opened which are
connected to a "back up" supply line as shown in FIG. 6 so that the
air handling unit still receives chilled water. A similar piping
system would be used for the return chilled water system. The same
back-up pipe can be used for both the return and supply chilled
water system if similar valves are closed and opened.
[0050] FIG. 6 which shows 14 inch chilled water supply 100 and
return 102 from the pump room 104. 4 inch chilled water supply 106
and return 108 lines are then connected to the 14 inch chilled
water lines to serve rooms 4, 5, 6, 7, 8 and 9. An additional 4
inch pipe 110 is placed in each corridor to take the place of any
section which is closed off by valves so that section can be
repaired. See valves V in FIG. 6.
[0051] The preferred configuration of this data center design will
provide that (1) the electrical distribution to the racks and PDU
rooms will be located between the AHU 8A and the mezzanine deck 12
and above the mezzanine deck 12, in a secured steel tray attached
to the deck with a space for the flow of water if there is a leak
in the primary roof. (2) The fire suppression system will be
provided by INNERGIN.TM. gas located in cylinders located above the
mezzanine deck and above the space being protected. (3) The chilled
water supply and return pipes will be located in the corridors
below the raised floor in a trench 5 with a drain beneath these
pipes and a water tight separation to the adjacent rooms. (4) Racks
located in a small room will receive conditioned air from an AHU in
the corridor. (5) Rack in large rooms with a heavy A.C. load will
have the AHU on a raised floor with the supply air moving under the
raised floor to the racks. (6) The bollards, the walls of the
building and the shear walls and the mezzanine deck and the primary
roof structure will provide protection against blast to the highest
Department of Defense standards.
[0052] The chilled water pipes, fiber and electrical conduit can be
located in a trench in the corridor and the top of the raised floor
13 can be level with the concrete slab 60 adjacent to the corridor
(see FIG. 1A). In the alternative, FIG. 1C, the space 15, can be
located between the walls 3A and 3B, the raised floor 13 and the
slab 60. In that case, the raised floor 13, would be located on
each side of the corridor walls. In that case, the rooms on each
side of the corridor would have raised floors and the supply ducts
73 shown in FIG. 2 would have a vertical section so that the supply
air would be extended down in the corner of the room so that the
supply air would pressurize the space below the raised floor, and
the cold air could then be supplied below the racks 7 in FIG.
2.
[0053] There is sufficient space above the mezzanine that the fiber
optic lines can be laid out so that they do not cross the power
distribution lines. The power lines which are intended to be
dropped through the mezzanine deck to the cage below would be
located at the front of the cage and the fiber lines would be
located at the rear of the cages.
[0054] Some other advantages of the design are:
[0055] 1. The electric power and the fiber are kept more than the
required distance apart.
[0056] 2. The fiber and low voltage copper data lines are located
in a secure space below the raised floor, or above the mezzanine
deck. In either case, it can be secured in a steel tray with a
locking device and a monitoring device for surveillance.
[0057] 3. The fan coil units do not require room floor space. This
raises the efficiency of the use of the floor area of the
building.
[0058] 4. In addition to providing security against blast, the
secondary roof provides redundancy with respect to protection from
roof leaks and an excellent place to run additional fiber and
power.
[0059] 5. A normal duct system in the corridors which are then
connected to the rooms can be tapped so that conversations in the
rooms could be heard by those not intended to be privy to such
conversations. The chilled water system described herein is not
subject to such intrusion.
[0060] 6. This design is intended to meet federal security (SCIF)
requirements.
[0061] The foregoing description should be considered as
illustrative only of the principles of the invention. Since
numerous modifications and changes will readily occur to those
skilled in the art, it is not desired to limit the invention to the
exact construction and operation shown and described, and,
accordingly, all suitable modifications and equivalents may be
resorted to, falling within the scope of the invention.
* * * * *