JP2011115255A - Fire extinguisher system in information-communication equipment room and method for controlling the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide fire extinguisher system control techniques capable of avoiding an occurrence of trouble of ICT apparatuses caused by starting fire extinguishers in an information-communication equipment room. <P>SOLUTION: When a fire breaks out in a compartment (S102) and two or more smoke detectors 6 detect a fire (S103), the information is transmitted to a control section 8 (S104). The control section 8 commands normal arrest of the functions (shutdown) to respective server units 3b (S106). After confirming the normal arrest of the functions of the server units 3b (S108), the control section immediately commands the fire extinguishers to start (S109). Starter valves 5d of gas container units 5 are thus opened to supply inert gas via a main line 5a and the inert gas is released from injection head 5b to the interior of the room (S111). <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a fire extinguishing equipment system in an information communication machine room and a control method thereof, and more particularly, to an interlock control technique that can prevent occurrence of a failure of an ICT apparatus due to fire extinguishing equipment activation.

Conventionally, a water bubble fire extinguishing equipment and a gas fire extinguishing equipment are known as fire extinguishing equipment. Of these, in information communication machinery rooms that contain a large number of ICT devices such as data centers, gas fire extinguishing equipment using inert gas is used to minimize the impact on the equipment due to fire extinguishing equipment activation in the event of a fire. Increasing number of cases. Gas system extinguishing equipment, the lower limit of the radiation pressure of the gas injection head 5b by fire method are defined, for example in the case of N ₂ gas is defined as more than 1.9 MPa. In addition, manual or automatic activation methods are defined for gas fire extinguishing equipment. For manual activation methods, (a) evacuation of the operator of the activation device, (b) acoustic device (gas release into the compartment) , Which is a device that effectively transmits the transmission). In the case of the automatic start method, the linkage with the smoke detector of the automatic fire alarm system is defined.
Hereinafter, the operation flow up to the extinguishing gas discharge in the case of a conventional fire will be described by taking the case of the automatic start method as an example. Referring to FIG. 6, when a fire occurs in the fire extinguishing section (S1001), When two or more smoke detectors detect a fire (S1002), an evacuation announcement is started (S1003). A timer is activated simultaneously with the start of the announcement (S1004), and fire extinguishing equipment is activated, that is, an inert gas is released into the compartment after a predetermined time (for example, 5 seconds in the case of unattended) (S1005). At the same time, the gas filling indicator lamp is turned on (S1006). The fire is extinguished by the above-described series of operation flows, and the process ends (S1007). Note that in the case of manned time and the manual activation method, an interlock mechanism is provided in which a timer is activated by pressing the activation button in S1004.

  As the prior art related to the gas fire extinguishing equipment, techniques listed in the following documents 1 to 3 are exemplified. Documents 1 and 3 relate to a technique of performing additional discharge in order to compensate for gas that decreases due to outflow from an opening after releasing a gas having a flame extinguishing concentration or more. Document 2 relates to a technique for continuously discharging an inert gas and a water bubble fire extinguishing solution from the same fire extinguishing head.

JP 2001-95936 A JP 2007-6932 A JP 11-57054 A

In the gas fire extinguishing equipment, a very loud operating noise is generated with the rapid expansion of the high-pressure gas when the gas is released. The operating sound propagates as a pressure wave and spreads throughout the fire extinguishing section, and is converted into vibration energy when reaching the fire extinguishing target in the section.
However, in the information communication machine room in which the ICT device is accommodated, the drive unit such as the ICT device, particularly the HDD, is vulnerable to vibration, and the vibration noise generated when gas is released is critical to the stable operation of the ICT device. Cause serious trouble to the service, such as malfunction or loss of handling data. Furthermore, there is a problem that such a stable operation failure extends not only to the place where the fire occurs but also to the entire fire extinguishing section. When there is a person in the section, an interlock such as manual activation is taken as described above, but no measures are taken for avoiding malfunction of the ICT device.
In addition, about the influence on the ICT apparatus at the time of fire extinguishing equipment operation | movement, it could not be found in prior art literature.

The present invention is directed to solving the above-described problems, and relates to fire fighting equipment activation interlock control for the purpose of avoiding malfunction of an ICT device accompanying fire fighting equipment operation.
The gist of the present invention is as follows. That is, the control method of the fire fighting equipment system in the information communication machine room according to the present invention,
(1) In an information communication machine room in which an ICT device is housed in a room, a fire extinguishing equipment system control method for starting a fire extinguishing equipment when a fire occurs, and when the fire extinguishing equipment should be started, the fire extinguishing equipment start timing And an avoidance measure timing for preventing the occurrence of malfunction of the ICT device when the fire extinguishing equipment is activated.
By linking the activation of the fire extinguishing equipment and the avoidance measure of the ICT apparatus, it is possible to prevent the malfunction of the ICT apparatus accompanying the fire extinguishing equipment activation.
In the present invention, the “information communication machine room” is a concept including a data center, a telephone exchange machine room, and the like.
“ICT device” refers to an information communication device / device such as a server, storage, or router.
“Fire extinguishing equipment” targeted in the present invention is sprinkler equipment, water spray fire extinguishing equipment, foam fire extinguishing equipment, inert gas fire extinguishing equipment, halide fire extinguishing equipment, CO ₂ fire extinguishing equipment, powder fire extinguishing equipment, or the like.

(2) In the above invention, the fire extinguishing equipment is activated after the avoidance measure of the ICT device is completed.
According to the present invention, avoidance measures such as malfunction due to damage to the ICT device or loss of handling data are avoided because measures are taken to protect the main body of the ICT device, data protection, etc. before starting the fire extinguishing equipment. it can.
(3) In the invention described above, the avoidance measure for the ICT apparatus is performed immediately after the fire extinguishing equipment is started.
According to the present invention, since fire extinguishing equipment activation always precedes, there is an effect that a series of fire extinguishing equipment operations are not hindered even if a certain time is required for avoiding the ICT device.
(4) In the above invention, the fire extinguishing equipment is a gas fire extinguishing equipment.
According to the present invention, it is possible to avoid damage to the ICT apparatus due to vibration noise generated when inert gas is released.
(5) In the above invention, the avoidance measure is a backup operation of data processing being executed by the ICT apparatus.
(6) The avoidance measure is an operation to normally stop the function of the ICT device.
(7) The avoidance measure is an operation for avoiding physical damage to the ICT apparatus due to vibration during gas ejection.
As a means for avoiding physical damage, for example, an HDD rotation stop instruction of the ICT device or a pickup head retract instruction is given to prevent damage to the recording disk surface by the pickup head.

The fire fighting equipment system in the information communication machine room according to the present invention,
(8) A fire extinguishing equipment system in an information communication machine room in which an ICT device is housed in a room, and before starting the fire extinguishing equipment, take measures to prevent occurrence of a stable operation failure of the ICT device due to the starting. And an interlock mechanism.
(9) A fire extinguishing equipment system in an information communication machine room in which an ICT device is accommodated in a room, and immediately after starting the fire extinguishing equipment, take measures to prevent occurrence of malfunction of the ICT equipment accompanying the fire extinguishing equipment activation It is characterized by comprising means for performing.

  According to each of the above inventions, it is possible to avoid a stable operation failure, physical damage, or enormous service stoppage or degradation of the ICT device when the fire extinguishing equipment is operating in the information communication machine room.

It is a figure showing the whole fire extinguishing equipment system 1 composition concerning a first embodiment. It is a figure which shows the control flow of the fire extinguishing equipment system. It is a figure which shows the whole fire extinguishing equipment system 20 structure concerning 2nd embodiment. It is a figure which shows the control flow of the fire extinguishing equipment system. It is a figure which shows the control flow of the fire extinguishing equipment system which concerns on 3rd embodiment. It is a figure which shows the control flow of the conventional fire extinguishing equipment system.

Hereinafter, an embodiment of a fire extinguishing equipment system control method according to the present invention will be described in more detail with reference to FIGS. In order to avoid redundant description, the same components are denoted by the same reference numerals in the respective drawings. Needless to say, the scope of the present invention is described in the claims and is not limited to the following embodiments.
<First embodiment>
This embodiment relates to control for shutting down the ICT device prior to activation of the fire extinguishing equipment.
With reference to FIGS. 1 and 2, a fire extinguishing equipment system 1 according to the present embodiment includes a gas fire extinguishing equipment 1a for an information communication machine room 2 that is a fire extinguishing target section. The gas fire extinguishing equipment 1 a is disposed in the machine room 2, a gas supply device 4 that supplies a gas fire extinguisher, a plurality of jet heads 5 b and a fire smoke detector 6 that are disposed on the ceiling of the machine room 2. A voice alarm device 7 for making an evacuation announcement in the event of a fire is provided as a main component.
The gas supply device 4 includes a gas container unit 5 filled with nitrogen gas as an inert gas, a main pipe 5a connecting the gas container unit 5 and the injection head 5b, and an activation valve disposed in the main pipe 5a path. 5d and an activation valve operating section 5g for operating the activation valve 5d. The start valve operating section 5g includes a start gas container unit 5c, an electromagnetic valve 5f, and a start gas pipe 5e, and opens the solenoid valve 5f, from the start gas container unit 5c via the start gas pipe 5e. The start valve 5d is configured to be opened by the supplied gas pressure.

A plurality of server racks 3 are accommodated in the machine room 2, and a plurality of ICT devices (hereinafter abbreviated as servers) 3a are stored in the respective server racks. The server 3a performs predetermined data processing in units of a single server group or a plurality of server groups (hereinafter referred to as server units 3b).
In this system, the fire extinguishing equipment operation is controlled by the control unit 8. The control unit 8, the fire smoke detector 6, the sound alarm device 7, and the electromagnetic valve 5f of the starting gas container unit 5c are connected via communication lines C2 to C4, respectively, and are configured to be able to exchange signals with each other. ing. The control unit 8 and the server unit 3b serving as a data processing unit are connected via a communication line C1, and are configured to be able to exchange signals with each other as will be described later.

The fire extinguishing equipment system 1 is configured as described above. Next, the fire extinguishing equipment and data processing control flow when a fire occurs in the present embodiment will be described with reference to FIG.
In normal time, each server unit 3b is executing a predetermined data process (S101). The control unit 8 constantly monitors the operating state of the server unit 3b (S101a). In this situation, a fire occurs in the section (S102), and when two or more smoke detectors 6 detect a fire ( In step S103, the information is transmitted to the control unit 8 (step S104). The control unit 8 instructs the voice alarm device 7 within a certain time (for example, within 5 seconds) after reception (S105), and an evacuation announcement is started (S105a). Next, the control unit 8 instructs each server unit 3b to stop (shut down) normal functions (S106). Receiving this, each server unit 3b terminates the process being executed and normally stops operation (S107).
The control unit 8 confirms the normal function stop of the server unit 3b (S108), and immediately issues an activation instruction to the fire extinguishing equipment (S109). Thereby, the electromagnetic valve 5f of the starting gas container unit 5c is opened (S110), and the starting valve 5d is opened by the pressure of the starting gas. The inert gas is guided to the ejection head 5b via the main pipe 5a and further discharged into the room (S111). In this manner, the fire extinguishes when the room is filled with an inert gas having a flame extinguishing concentration or more (S112).
According to the present embodiment, the server data corresponding to the burnout site is lost, but the data related to other servers in the room is malfunctioning even if there is physical damage to the server due to vibration during gas ejection. It is possible to avoid the influence on the service due to data loss or the like.

In the present embodiment, an example in which the operation control of the fire extinguishing equipment and the operation control of the server unit are performed by the control unit 8 is shown. However, the present invention is not limited to this, and an existing fire extinguishing equipment control device (general control panel) is used for extinguishing the fire. The starting control of the equipment itself is performed, and the control unit according to the present invention can be configured to ensure interlock by signal transmission or the like (the same applies to the following embodiments).
In addition, although an example in which the server unit is instructed to stop normal function as a means for avoiding the occurrence of an operation failure has been shown, the present invention is not limited to this. It is possible to avoid the occurrence of a failure (the same applies to the following embodiments).
Further, in S108, the example in which the start instruction is given to the fire extinguishing equipment after confirming the normal function stop of the server unit has been shown.

<Second Embodiment>
Next, another embodiment of the present invention will be described. The present embodiment relates to a control mode for transferring data to a place other than the fire extinguishing target section as an avoidance measure.
With reference to FIG. 3, the fire extinguishing equipment system 20 according to the present embodiment is different from the above-described fire extinguishing equipment system 1 in that a backup server 21 is provided in a place other than the fire extinguishing target section, and the server 21 and the control unit 8 and the server unit 3b are connected via communication lines C5 and C6, respectively, and are configured to be able to exchange signals with each other. Thereby, based on the instruction | command from the control part 8, the process data which the server unit 3b accumulate | stores is comprised so that transfer is possible. Since it is the same as the fire extinguishing equipment system 1 about another structure, duplication description is abbreviate | omitted.

Next, with reference also to FIG. 2, the fire extinguishing control flow at the time of fire occurrence of the fire extinguishing equipment system 1 according to the present embodiment will be described.
About S201 to S205a, since it is the same as the fire-extinguishing control flow (see FIG. 2) of the fire-extinguishing equipment system 1, redundant description is omitted.
Next, the control unit 8 instructs the server unit 3b to transfer the stored data to the backup server 21 (S206). In response to this, the server unit 3b transfers the corresponding data to the server 21 (S207), and the backup server 21 performs backup processing (207a). When the transfer is completed, the server unit 3b immediately transmits a transfer completion signal to the control unit 8 (S208).
The subsequent flow (S209 to S212) is the same as the flow of FIG.

In addition, although the example which uses a gas-type fire extinguisher as a fire extinguisher was shown in this embodiment, in the case of this embodiment, since data is transferred before damage of an ICT apparatus, it is good also as a form using a water-system fire extinguishing equipment.
Moreover, although the example which transfers data to the backup server of another room was shown in this embodiment, it is good also as a form which continues a service by transferring a process to another data center before the fire extinguishing equipment start without being limited to this. .
In S208, an example in which the start instruction is given to the fire extinguishing equipment after receiving the transfer completion signal from the backup server has been shown. However, after the data transfer instruction to the server unit is given, the start instruction is immediately given to the fire extinguishing equipment. It is good.

<Third embodiment>
Furthermore, another embodiment of the present invention will be described. The present embodiment relates to a control mode in which an ICT device avoidance measure is taken after fire extinguishing equipment is activated.
About the structure of this invention, since it is the same as the fire extinguishing equipment system 1, duplication description is abbreviate | omitted. Next, with reference to FIG. 5, the fire extinguishing control flow at the time of fire occurrence according to the present embodiment will be described. About S301 to S305a, since it is the same as the fire extinguishing control flow (refer FIG. 2) of the fire extinguishing equipment system 1, duplication description is abbreviate | omitted.
After starting the evacuation announcement, the control unit 8 then issues a start instruction to the fire extinguishing equipment (S306). Thereby, the electromagnetic valve 5f of the starting gas container unit 5c is opened (S307), and the starting valve 5d is opened by the pressure of the starting gas within the legal time (S308). The inert gas is guided to the ejection head 5b via the main pipe 5a and further discharged into the room. In this way, the fire is extinguished when the room is filled with an inert gas having a flame extinguishing concentration or more (S312).
On the other hand, when confirming that the start valve 5d is opened (S309), the control unit 8 instructs each server unit 3b to stop (shut down) the normal function (S310). Receiving this, each server unit 3b terminates the process being executed and normally stops operation (S311).

  The present invention can be widely applied not only to an information communication machine room but also to a target space that houses an ICT device that requires installation of fire extinguishing equipment.

DESCRIPTION OF SYMBOLS 1, 20 ... Fire extinguishing equipment system 1a ... Gas fire extinguishing equipment 2 ... Information and communication machine room 3 ... Server rack 3a ... Server 3b ... Server unit 4 ... Gas supply unit 5 ... Gas container unit 5a ... Main pipe 5b ... Gas injection head 5c ... Start gas container unit 5d ... Start valve 5e ... Start gas pipe 5f ... Electromagnetic Valve 5g ... Starting valve operation unit 6 ... Smoke detector 7 ... Sound alarm device 8 ... Control unit 21 ... Backup server C1-C6 ... Communication line

Claims (9)

In an information communication machine room in which an ICT device is accommodated in a room, a fire extinguishing equipment system control method for starting a fire extinguishing equipment when a fire occurs,
When the fire extinguishing equipment is to be activated, the fire extinguishing equipment in the information communication machine room is characterized in that the activation timing of the fire extinguishing equipment is linked to the avoidance measure timing for preventing the malfunction of the ICT device accompanying the activation of the fire extinguishing equipment. Control method of equipment system.   2. The method of controlling a fire extinguishing equipment system in an information communication machine room according to claim 1, wherein the fire extinguishing equipment is activated after completion of the avoidance measure of the ICT apparatus.   2. The method for controlling a fire extinguishing equipment system in an information communication machine room according to claim 1, wherein the avoidance measures of the ICT apparatus are performed immediately after the fire extinguishing equipment is started.   The method for controlling a fire extinguishing equipment system in an information communication machine room according to claim 1, wherein the fire extinguishing equipment is a gas fire extinguishing equipment.   5. The fire extinguishing equipment system control method according to claim 1, wherein the avoidance measure is a backup operation of data processing being executed by the ICT apparatus.   The method for controlling a fire extinguishing equipment system according to any one of claims 1 to 4, wherein the avoidance measure is an operation to normally stop the function of the ICT device.   The method for controlling a fire extinguishing system according to any one of claims 1 to 4, wherein the avoidance measure is an operation for avoiding physical damage to the ICT apparatus due to vibration during gas ejection. A fire extinguishing equipment system in an information communication machine room in which an ICT device is accommodated in a room,
A fire extinguishing equipment system in an information communication machine room, comprising an interlock mechanism for performing avoidance measures for preventing occurrence of a stable operation failure of the ICT device due to the start-up of the fire extinguishing equipment. A fire extinguishing equipment system in an information communication machine room in which an ICT device is accommodated in a room,
A fire extinguishing equipment system in an information communication machine room, comprising means for performing avoidance measures for preventing malfunction of an ICT device accompanying the start of the fire extinguishing equipment immediately after the fire extinguishing equipment is started.

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