KR20210100791A - Auto Extinguisher device for sever rack and Operation method of Auto Extinguisher device - Google Patents

Abstract

An automatic fire extinguishing device for a server rack mounted in a built-in method on a server rack (server rack, equipment that collects and stacks servers in one place) and an operating method thereof are disclosed. The automatic fire extinguishing device for the server rack according to the present invention includes: an enclosure which is a box-shaped structure in which an upper cover is coupled to an upper part of a lower container, has a mounting space formed therein; a controller installed in the mounting space of the enclosure and composed of a first board on which a microcomputer is mounted; first and second fire detectors which are combined in a structure exposed to the outside at a bottom of the enclosure and detect fire signs or fires of the server mounted on the server rack and deliver detected information to the controller; an alarm sound generator installed inside one side of the lower container and outputting a fire alarm sound from the electrical signal output by the controller to the outside of the enclosure; at least one fire extinguishing agent container mounted in the mounting space of the enclosure and filled with powder or liquid fire extinguishing agent at high pressure inside; an electric valve unit coupled to an extinguishing agent outlet side of the extinguishing agent container and operated to open the extinguishing agent outlet by the electrical signal output by the controller; the extinguishing agent outlet coupled to the bottom of the enclosure in a structure exposed to the outside, and connected to the electric valve unit by a pipe or hose; and a touch input-based display which is connected to exchange information with the controller, displays detailed information about fire and device status in a user-recognizable way, and controls various functions through a touch input. Accordingly, it is possible to prevent or minimize enormous damage such as equipment damage and data loss due to the fire.

Description

Auto Extinguisher device for server rack and Operation method of Auto Extinguisher device

The present invention relates to an automatic fire extinguishing device, and in particular, it is mounted in a server rack (equipment that collects and stacks servers in one place) in a built-in method, detects a fire, and automatically releases an extinguishing agent for rapid initial firefighting It relates to an automatic fire extinguishing device for a server rack that enables the

In general, it is desirable and required to provide a fire extinguisher or the like in a building in preparation for the occurrence of a fire. However, in the case of a general fire extinguisher, not only the user has to purchase a fire extinguisher separately, but also the user must operate the fire extinguisher to spray the extinguishing agent. There is a downside to being

Recently, extinguishing objects are not limited to simple existing buildings or devices and records therein, but are increasingly diversified. This is due to the diversification and integration of ancillary facilities due to the enlargement of buildings and high-rise buildings, and in the trend of diversification and integration of auxiliary facilities, it is difficult to quickly suppress fires that occur intensively in a specific area with conventional fire extinguishing facilities. there is

Accordingly, when a fire occurs in a specific fire extinguishing object, an automatic fire extinguishing system of a local release method has been proposed that quickly extinguishes the fire by locally spraying a fire extinguishing agent toward the relevant object. This local release type automatic fire extinguishing system is configured to release the fire extinguishing agent stored in a pressurized state in the fire extinguishing container by operating the starting device at the same time as the fire.

However, most of the known conventional automatic fire extinguishing systems of the local release type have a mechanical configuration that opens the fire extinguishing container by operating the starting device when the heat sensing member (generally referred to as a 'glass bulb') is broken by fire heat, including a preliminary alarm. There is a disadvantage that various information cannot be displayed, and there is a limit to the miniaturization of the device, so it is difficult to apply it in a narrow space such as a server rack.

Korean Patent No. 10-1036021 (Registration Date 2011.05.13)

The technical problem to be solved by the present invention is a compact configuration that can be built-in to a server rack (equipment that collects and stacks servers in one place), and when a fire is detected, it automatically releases the extinguishing agent immediately Accordingly, it is an object to provide an automatic fire extinguishing device for a server rack that enables rapid initial evolution and an operation method thereof.

Another technical problem to be solved by the present invention is to provide an automatic fire extinguishing device for a server rack capable of displaying various information, including a preliminary alarm, when detecting fire signs in an electronically controlled manner, and an operating method thereof.

Another technical problem to be solved by the present invention is that even if the power supply is cut off during a power outage or due to a main power failure, normal operation is possible by the internal spare power, and therefore an automatic fire extinguishing device for a server rack that can respond normally even in an emergency and We want to provide a way to do that.

Another technical problem to be solved by the present invention is to generate and output a fire warning sound preferentially when heat is detected, and release a fire extinguishing agent when heat and smoke are detected at the same time to extinguish a fire. It is intended to provide an automatic fire extinguishing system for server racks that can induce actions to be taken and that enables integrated monitoring of fires and its operation method.

According to one aspect of the present invention as a means of solving the problem,

It is an automatic fire extinguishing device for server rack mounted in a built-in method on a server rack (equipment that collects and stacks servers in one place).

A box-shaped structure in which the upper cover is coupled to the upper part of the lower container, the housing having a mounting space therein;

a controller installed in the mounting space of the housing and configured with a first substrate on which a microcomputer is mounted;

A first fire detector and a second fire detector coupled to a structure exposed to the outside at the bottom of the enclosure, detecting a fire sign or fire of a server mounted on a server rack, and transmitting the detected information to the controller;

an alarm sound generator installed inside one side of the lower container and outputting a fire alarm sound from an electrical signal output by the controller to the outside of the enclosure;

At least one fire extinguishing agent container mounted in the mounting space of the housing and filled with powder or liquid fire extinguishing agent at high pressure therein;

an electric valve unit coupled to the drug outlet side of the extinguishing agent container and operated to open the drug outlet by an electrical signal output by the controller;

a drug injection nozzle coupled to the bottom of the housing in a structure exposed to the outside, and connected to the electric valve unit and a pipe or a hose; and

A server including a; a touch input-based display unit that is connected to exchange information with the controller, displays detailed information about fire and device status in a user-recognizable way, and can control various functions through touch input Provides automatic fire extinguishing equipment for racks.

The automatic fire extinguishing device for a server rack according to an aspect of the present invention may further include a reserve power installed in the mounting space of the enclosure and provided to supply emergency power to the controller and the display unit when the main power is cut off. have.

The automatic fire extinguishing apparatus for a server rack according to an aspect of the present invention may further include a power input terminal and a power switch for on/off of the power provided on the other side part of the lower container, and an input/output terminal for connection with an external device. have.

Here, the external device is a cooling fan installed in the server rack, and in conjunction with the output of the first fire detector, the controller may output a stop command to the cooling fan through a dedicated cable connected to the input/output terminal.

More preferably, when the output of the first fire detector reaches a first preset value or the output of the second fire detector reaches a third preset value, the controller preferentially outputs an operation command to the alarm sound generator to generate an alarm, and when the output of the first fire detector reaches a second set value greater than the first set value, an additional stop command is output to the cooling fan to stop the cooling fan, and the output of the second fire detector When the fourth set value greater than the third set value is reached, the electric valve unit is finally activated so that the fire extinguishing agent is discharged into the server rack through the drug injection nozzle.

In addition, when the output of the first fire detector reaches a second preset value, the cooling fan is stopped and a warning message is output through the display unit or the visual alarm displayed on the display unit is blinked to visually reduce the risk of fire. It can also be clearly recognized so that prompt initial action can be taken.

Preferably, the first fire detector applied to the present invention may be a temperature sensor, and the second fire detector may be a smoke detector.

In addition, the drug injection nozzle applied to the automatic fire extinguishing device for a server rack according to an aspect of the present invention is coaxially coupled to a nozzle body having an orifice in the middle of the flow path, and a screw-coupled structure to one side of the nozzle body. It is composed of a nozzle tip having an injection hole having a smaller diameter than the orifice in the center of the discharge end from which the drug is discharged, and the cross-sectional area is gradually increased as the exit side of the injection hole goes down. .

Here, a perforated portion composed of a plurality of perforations for outputting the alarm sound generated by the alarm sound generator to the outside of the enclosure is formed on one side of the lower container, and the ringer surrounds the alarm sound generator from the inside of one side of the lower container. By being configured, the fire alarm sound generated by the alarm sound generator may be configured to be output to the outside in an amplified state through the ringer.

Preferably, a through hole communicating with the inner space of the Ulrimtong may be formed in the side adjacent to the perforated portion.

In addition, the display unit applied to the automatic fire extinguishing device for a server rack according to an aspect of the present invention is installed on one side of the lower container, and a display panel including a liquid crystal glass and a touch panel, and a user touch signal through the display panel It may be configured to include a second substrate that processes the information signal transmitted to the controller or transmitted from the controller and outputs a corresponding output signal to the display panel.

In addition, a manual operation button capable of manually starting the electric valve unit is displayed on the main screen of the display unit, and when the user touches the manual operation button, the controller recognizes the touch and an electrical signal corresponding to the electric valve unit (a signal for starting the electric valve unit) may be configured to output.

In addition, an operation test button is displayed on the main screen of the display unit, and when the user touches the operation test button, a button for selecting the first fire detector and the second fire detector is displayed, and in that state, the first fire detector button When you touch , the controller may be configured to recognize the touch and output an electrical signal corresponding to the alarm sound generator (a signal for generating a fire alarm sound).

At this time, when both the first fire detector button and the second fire detector button displayed after touching the operation test button are touched, the controller recognizes the touch and an electrical signal corresponding to the electric valve unit (a signal for starting the electric valve unit) ) can be configured to output

According to another aspect of the present invention as a means of solving the problem,

As a method of operating an automatic fire extinguishing device for a server rack according to the above-described aspect,

a preliminary alarm step in which the alarm sound generator outputs a fire alarm sound when the output of the first fire detector reaches a first set value or the output of the second fire detector reaches a third preset value;

a fire alarm step of stopping the cooling fan of the server rack when the output of the first fire detector reaches a second set value greater than the first set value; and

When the output of the second fire detector reaches a fourth set value that is greater than the third set value, the electric valve unit is started to operate the fire extinguishing device to open the drug outlet of the extinguishing agent container; It provides a way to work.

Here, in the fire alarm step, a warning message may be output through the display unit together with the cooling fan stopped, or a visual alarm displayed on the display unit may be flickered to reliably recognize a fire situation.

According to an embodiment of the present invention, it has a compact configuration that can be mounted in a built-in format on a server rack, which is equipment for gathering and stacking servers in one place, and automatically extinguishes a large amount of fire immediately when a fire is detected. By discharging the chemical at a wide spray angle to quickly extinguish the initial fire, enormous damage such as equipment damage and data loss due to fire can be prevented or minimized.

In addition, the automatic server rack fire extinguishing device according to an embodiment of the present invention is an electronic control method, and can display or provide various information including preliminary alarms when fire signs are detected, and power supply is interrupted due to power failure or main power failure. Even if it is cut off, normal operation is possible by the internal standby power supply, so normal response is possible even in case of emergency.

Moreover, when heat is detected, a fire warning sound is first generated and output, and when heat and smoke are detected at the same time, the fire extinguishing agent is released to extinguish the fire. It has the advantage of being able to perform integrated monitoring from various angles, and in some cases, it can be operated manually, so the reliability of the product can be improved.

1 is a perspective view of an automatic fire extinguishing device for a server rack according to an embodiment of the present invention.
Figure 2 is a bottom perspective view of the automatic fire extinguishing device for the server rack shown in Figure 1;
Figure 3 is a perspective view and a plan view with the upper cover removed of the automatic fire extinguishing device for server rack shown in Figure 1;
4 is a device configuration diagram of an automatic fire extinguishing apparatus for a server rack according to an embodiment of the present invention.
5 is a schematic view showing a preferred example of the motor-operated valve unit.
6 is a schematic view showing another preferred example of the motor-operated valve unit.
7 is a cross-sectional view showing a preferred example of the drug injection nozzle.
Figure 8 is a view showing a preferred embodiment of the height-adjustable drug injection nozzle.
9 is a diagram illustrating a preferred screen configuration of a main screen displayed on a display panel;
10 is a view illustrating an installation state of an automatic fire extinguishing device for a server rack according to an embodiment of the present invention.
11 is a view for explaining the operation mechanism of the automatic fire extinguishing device for server rack according to an embodiment of the present invention.

Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

Terms used in the specification are used only to describe specific embodiments, and are not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly dictates otherwise.

As used herein, terms such as “comprise” or “have” are intended to designate that a feature, number, step, operation, component, part, or combination thereof described in the specification is present, and includes one or more other features or It is to be understood that the existence or addition of numbers, steps, operations, components, parts, or combinations thereof is not precluded in advance.

Also, terms such as first and second may be used to describe various elements, but the elements should not be limited by the terms. The above terms are used only for the purpose of distinguishing one component from another.

In addition, terms such as “…unit”, “…unit”, “…module”, etc. described in the specification mean a unit that processes at least one function or operation, which may be implemented by hardware or software or a combination of hardware and software. can

In the description with reference to the accompanying drawings, the same reference numerals will be given to the same components for the same drawings, and the overlapping description thereof will be omitted. In the description of the present invention, when it is determined that a detailed description of a related known technology may unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted.

1 is a perspective view of an automatic fire extinguishing apparatus for a server rack according to an embodiment of the present invention, and FIG. 2 is a bottom perspective view of the automatic fire extinguishing apparatus for a server rack shown in FIG. 1 . And Figure 3 is a view for showing the internal configuration of the automatic fire extinguishing apparatus for a server rack shown in Figure 1, a perspective view and a plan view with the upper cover removed from the housing configuration of Figure 1, Figure 4 is a server according to an embodiment of the present invention It is a device configuration diagram of an automatic fire extinguishing system for a rack.

1 to 4, the automatic fire extinguishing device 2 for a server rack according to an embodiment of the present invention includes a controller 11 and an alarm sound generator 14 installed inside the housing 10 constituting the external appearance of the device. , including a fire extinguishing agent container 16 , an electric valve unit 17 , and a spare power source 21 . In addition, the first and second fire detectors 12 and 13 coupled to the housing 10 in a structure in which a part is exposed to the outside of the housing 10, a display unit 20, and a chemical injection nozzle 19 are provided. .

The housing 10 is a box-shaped structure in which the upper cover 10b is coupled to the upper portion of the lower container 10a, preferably a rectangular parallelepiped structure as illustrated in the drawings, and may have a mounting space formed therein, and the controller 11 is It is installed in the mounting space of the housing (10). The controller 11 is preferably mounted on a circuit board (referred to as 'first board 110') that is securely fixed to one side of the lower container 10a of the housing 10 by a bolting method (referred to as a 'first board 110'). It can be one configuration.

The first fire detector 12 and the second fire detector 13 may be coupled in a structure exposed to the outside at the bottom of the housing 10 . The first fire detector 12 and the second fire detector 13 detect a fire sign or fire of a server mounted on a server rack and transmit the sensed information to the controller 11, and the controller 11 controls the fire. Based on the information sensed by the detectors 12 and 13, the subsequent control (control for generating an alarm sound and discharging the extinguishing agent) is executed.

The first fire detector 12 may preferably be a temperature detector (temperature sensor) that detects a temperature change in the server rack and outputs the sensed information to the controller 11 in the form of a corresponding electric signal, and the second fire The detector 13 is preferably a smoke detector that detects the generation of smoke in the server rack and emits a corresponding signal to the controller 11 in the form of an electrical signal when the smoke is detected.

Although not specifically illustrated, the second fire detector 13 is a known base including a base on which the detector is mounted, a cover coupled to the base to cover the detector, and an operating lamp that generates light to indicate that the detector is in a warning mode. It may be a configuration of a smoke detector, and both an ionic type for capturing a change in ion current and a light type for detecting smoke from a change in luminous flux may be applied.

The alarm sound generator 14 is installed inside one side of the lower container 10a to generate a fire alarm sound from an electrical signal output by the controller 11 and output it to the outside of the housing 10 . The alarm sound generator 14 may be a speaker, which is an acoustic device that radiates sound waves by generating small waves in the air by converting an electrical signal into vibration of a diaphragm, and controls the controller 11 linked to the output of the first fire detector 12 . can work with

The extinguishing agent container 16 is firmly fixed to the mounting space of the housing 10 through a dedicated bracket (B) coupled to the inner side of the lower container 10a. At least one fire extinguishing agent container 16 is preferably, as shown in the figure (FIG. 3), two containers are each independently installed inside the lower container 10a through a dedicated bracket, and each extinguishing agent container 16 ) Inside, powder or liquid extinguishing agent for fire suppression is filled with high pressure.

At one end of the extinguishing agent container 16 filled with powder or liquid extinguishing agent at high pressure, a drug outlet 160 (refer to FIG. 5 ) is formed, and the electric valve unit 17 is installed at the drug outlet 160 . The motorized valve unit 17 is operated to open the drug outlet 160 at the time when a specific signal is input from the controller 11 while blocking the drug movement path by the usual drug outlet 160 .

More specifically, when the concentration of smoke detected by the second fire detector 13 (smoke detector) is equal to or greater than the set value, the controller 11 operates with an electrical signal (start command) output to the drug outlet 160 ) is opened. Accordingly, the fire extinguishing agent filled at least at atmospheric pressure or higher in the fire extinguishing agent container 16 is discharged through the tube or hose 18 and the chemical spray nozzle 19 to the outside of the device, that is, the inside of the server rack.

The motorized valve unit 17 is a solenoid starting method in which a pintle installed movably inside the valve housing is moved to one side by an electrical signal output from the controller, and thereby the flow path through the drug outlet is opened, or it is operated by the rotational force of the motor For example, a motor starting method in which a pin is moved linearly to press a packer blocking the flow path to open the flow path.

A preferred embodiment of the electric valve unit will be described in more detail with reference to the accompanying drawings 5 and 6 .

5 is a diagram schematically illustrating a motor-driven valve unit of a solenoid starting type as a preferred example of the motor-operated valve unit.

Referring to FIG. 5, the electric valve unit 17-1 of the solenoid starting type is coupled to the drug outlet 160 and has a hollow valve housing 170 having a discharge hole formed in the side part, and the valve housing 170 inside. It includes an actuator 174 consisting of an annular coil 175 and an armature 176 surrounded by the coil 175 . In addition, a poppet valve 177 coupled to the armature 176 to open and close the flow path 171 formed in the valve housing 170 is provided.

The poppet valve 177 corresponds to the pintle 178 coupled to the armature 176 and the flow path 171 formed in the valve housing 170, as shown in the figure (FIG. 5), at the lower end of the pintle 178. It may be composed of an attached valve cap 179, and a spring 173 providing elasticity is installed between the armature 176 and the valve housing 170 so that the poppet valve 177 is pressed in the direction to close the flow path. can be

In the electric valve unit 17-1 having such a configuration, when the coil 175 is magnetized by the power applied from the controller 11 when the detection signal from the second fire detector 13 is input, the magnetic armature By the interaction between the 176 and the coil 175 surrounding it, the armature 176 and the poppet valve 177 are pushed to one side (upward) as shown in FIG. The extinguishing agent is discharged out of the container along the flow path 171 .

6 is a diagram schematically illustrating a motor-driven valve unit of a motor-starting method as another preferred example of the motor-operated valve unit.

Referring to FIG. 6 , in the motor 186 starting type electric valve unit 17-2, the motor 186 and the motor 186 are coupled to one side and the other end is the drug outlet of the extinguishing agent container 16. A valve body 180 coupled to 160 through a valve adapter 185, and a movable shaft 187 provided so as to linearly move within the valve body 180 with the rotational force generated by the motor 186 include It also includes a tubular connector 189 coupled from the other side of the valve body 180 opposite the motor 186 .

The valve body 180 has a hose connector 182 in which a first flow path 181 communicating with the inside of the fire extinguishing agent container 16 is formed and a second flow path 183 communicating with the first flow path 181 is formed on the side thereof. are provided integrally. A stepped 184 is formed inside the valve body 180 around the point where the first flow path 181 and the second flow path 183 meet, and has a truncated cone shape to open and close the first flow path 181 of the stepped 184 part. of the sealing member 188 is installed inside the valve body 180 .

One side of the sealing member 188 (the lower surface of the sealing member in the drawing) is elastic to block the first flow path 181 of the stepped 184 portion by the spring S interposed between the tubular connector 189 and the tubular connector 189. The movable shaft 187 which is supported and moves linearly in the direction in which the first flow path 181 is formed by the rotational force of the motor 186 on the other side (the upper surface of the sealing member in the drawing) or the movable shaft 187 It may be configured to freely receive a portion of the rotation.

The electric valve unit 17-2 of the motor 186 starting method of this configuration has a truncated cone-shaped sealing member 188 with the elasticity of the spring S as shown in FIG. 6 (a) before starting the step 184 ) by blocking the first flow path 181 of the portion, the discharge of the fire extinguishing agent is blocked, and the motor 186 is operated with a start command outputted by the controller 11 when the detection signal from the second fire detector 13 is input. When driven, the fire extinguishing agent is discharged by opening the first flow path 181 which was blocked as shown in FIG. 6(b).

More specifically, when the motor 186 is driven by a start command output by the controller 11 when the detection signal is input from the second fire detector 13 and the output shaft rotates, the motor 186 output shaft rotates. The movable shaft 187 connected to enable axial linear motion in response to the moving in the direction of the arrow in the drawing (FIG. 6 (b)), the sealing member 188 blocking the first flow path 181 will press

The spring (S) elastically supporting the sealing member 188 is compressed by the pressing force of the movable shaft 187, and the sealing member 188 is pushed in the direction in which the movable shaft 187 moves. The first flow path 181 blocked by the 188 is opened. As a result, the liquid or powder type fire extinguishing agent charged at high pressure in the extinguishing agent container 16 passes through the open first flow path 181 and the second flow path 183 connected to the first flow path 181 to the extinguishing agent container 16 ) is discharged.

As a preferred embodiment of the electric valve unit, the solenoid starting method (the embodiment shown in FIG. 5) and the motor starting method (the embodiment shown in FIG. 6) have been described as examples above, but it is limited to the same configuration as the corresponding embodiment. it doesn't mean This is because it only needs to be configured to open the outlet of the extinguishing agent container that is operated by an electric signal and the extinguishing agent is charged with high pressure.

The chemical spray nozzle 19 is coupled to the bottom part of the housing 10 in a structure in which a part is exposed to the outside, and the electric valve unit 17 and the pipe or hose 18 installed in each of the extinguishing agent containers 16 are connected to each other. connected through The pipe or hose 18 forms a passage for the movement of the extinguishing agent between the electric valve unit 17 and the chemical injection nozzle 19, and thus the chemical discharge port 160 during the electric valve unit 17 opening operation. The extinguishing agent discharged through the can be moved to the drug injection nozzle 19 through the pipe or hose 18.

7 is a cross-sectional view showing a preferred example of the drug injection nozzle.

As shown in Fig. 7, the chemical injection nozzle 19 is coaxially coupled to the nozzle body 190 having an orifice 192 formed in the middle of the flow path, and the nozzle body 190 is screwed to one side, and the extinguishing agent is discharged. It consists of a nozzle tip 194 having a spray hole 195 having a smaller diameter than the orifice 191 in the center of the discharge end, and the cross-sectional area is gradually increased as the outlet side of the spray hole 195 goes down. It may be an increasing configuration.

This drug injection nozzle 19 is, by forming the injection hole 195 with a smaller diameter than the orifice 192 of the nozzle body 190 at the nozzle tip 194, is discharged into the server rack through the injection hole 195 The pressure is rapidly reduced to prevent the instantaneous high-pressure release of an excessive amount of extinguishing agent at once. In addition, since the exit side of the injection hole 195 has a structure in which the cross-sectional area is expanded downward, the extinguishing agent can be evenly distributed and discharged inside the server rack.

That is, as the cross-sectional area of the outlet side of the injection hole 195 increases downward, the spraying angle of the fire extinguishing agent to be emitted is formed to be wide, so that the area to be extinguished can be increased. This structure enables effective fire extinguishing, especially when there is not enough room in the arrangement space between the automatic fire extinguishing device for server rack and the server rack according to an embodiment of the present invention.

This drug injection nozzle 19 is, as in the example of FIG. 8, a connector 198a of a telescopic antenna type (FIG. 8 (a)) or a connector pipe 198b of a corrugated pipe type (FIG. 8 (b)) It may be connected to the bottom of the housing 10 through the. In this case, the height of the drug injection nozzle 19 can be adjusted as desired according to the arrangement shape or structure of the server in the server rack by extending the connector pipe (198a or 198b) downward on the drawing or conversely contracting it.

Although the drawing (FIG. 2) shows as an example that two drug injection nozzles 19 are configured in the housing 10, the automatic fire extinguishing device for a server rack according to an embodiment of the present invention has two chemical injection nozzles 19. It is not limited to the configuration formed. The chemical injection nozzle 19 may be configured as one or three or more, and the extinguishing agent container 16 for supplying the extinguishing agent to the chemical injection nozzle 19 is also not limited to the illustrated number.

In FIGS. 3 and 4, reference numeral 21 denotes a spare power source. The preliminary power source 21 may be a conventional primary battery using zinc metal as the negative electrode (-pole) or a lithium-based secondary battery reusable through charging, and is installed in the mounting space of the above-described housing 10 It is provided to supply emergency power to the controller 11 and the display unit 20 when the main power is cut off.

Accordingly, even when the normal power supply to the device is cut off due to a power outage due to fire or main power failure, etc. ) is possible. In other words, it is possible to minimize damage to the server due to fire through normal response even in an emergency (in case of power outage or main power failure).

On the other hand, as shown in Figure 2 above, the automatic fire extinguishing device for a server rack according to an embodiment of the present invention also includes a power input terminal (22, power plug connection terminal) and a main power on / provided on the other side of the lower container (10a). It may further include an input/output terminal 24 provided to be connected through a power switch 23 for off (on/off), and an external device installed in the server rack and a dedicated cable (not shown).

The external device may be a cooling fan (3) installed in the server rack to cool the servers inside the server rack, and in this case, the forced air flow in the server rack by the cooling fan (3) is discharged into the server rack. In order not to affect the flow of fire extinguishing agent particles, the controller 11 outputs a stop command to the cooling fan 3 through a dedicated cable connected to the input/output terminal 24 in conjunction with the output of the first fire detector 12 . can do.

That is, according to the output of the first fire detector 12, the controller 11 is configured to output a stop command to the cooling fan 3 of the server rack through a dedicated cable connected to the input/output terminal 24. The spread of the flame due to the air flow is prevented, and the released extinguishing agent can be sprayed in a uniform distribution towards the servers disposed entirely below without being focused in a specific direction or forcibly discharged out of the server rack.

The controller 11 is preferably configured such that the output of the first fire detector 12 (temperature sensor) reaches a preset first set value (temperature set value), or the output of the second fire detector 13 (smoke detector) reaches the preset value. When the set third set value (smoke concentration set value) is reached, an operation command is preferentially output to the alarm sound generator 14, and accordingly, the alarm sound generator 14 generates and outputs a fire-related alarm sound.

In addition, the controller 11 is further configured when the output of the first fire detector 12 rises to a second set value (temperature set value) greater than the first set value while the alarm sound is generated by the alarm sound generator 14 . , by outputting an additional stop command to the cooling fan 3, the flame spread by the cooling fan 3 is prevented, and the forced air flow in the server rack by the cooling fan affects the flow of the extinguishing agent particles to be discharged later. make sure not to reach

In some cases, when the output of the first fire detector 12 reaches the second preset value, a warning message is output through the display unit 20 together with the control to stop the cooling fan 3 or the display unit 20 ) can be controlled so that the visual alarm displayed on the screen flickers. In this case, the fire hazard can be clearly recognized visually along with the alarm sound, so that the operator can take the initial action more quickly.

The controller 11 also increases the output of the second fire detector 13 (smoke detector) in a state in which the output of the first fire detector 12 is detected to be greater than or equal to the set value (the first set value or the second set value). 3 When the fourth set value (smoke concentration set value) greater than the set value is reached, finally the command corresponding to the electric valve unit 17 so that the fire extinguishing agent is discharged into the server rack through the chemical injection nozzle 19 (start) command) to start the motorized valve unit (17).

On the other hand, in one side portion of the lower container 10a, a perforated portion 102 composed of a plurality of perforations for external output of the alarm sound generated by the above-described alarm sound generator 14 is formed (Fig. 1 and 3). And the alarm sound generator 14 is configured to surround the sound generator 14 from the inner side of one side of the lower container 10a, so that the fire alarm sound generated by the alarm sound generator 14 is amplified by the sound tube 15 may be output to the outside through the perforated portion 102 (see FIG. 3).

At this time, in order to maximize the sound amplification effect by generating a dilatational wave (a sound wave in which the traveling direction of the wave and the vibration direction of the medium are parallel to each other) in the air filled in the reverberation tube 15, the adjacent side of the perforated portion 102 has the At least one through hole 104 communicating with the inner space of the woollimtong 15 may be formed, and in this case, the alarm sound may be amplified to a level of about 70 dB, which is a level that an administrator can easily recognize.

The display unit 20 (refer to FIGS. 1 and 4 above) is connected to the controller 11 to exchange information with each other. The display unit 20 displays detailed information about the fire and device status so that the user can recognize it, and can control various functions (manual operation, operation record check, time and date setting, operation test, etc.) through touch input. It may be a configuration based on a touch input.

The display unit 20 is preferably installed so as to be exposed to the outside on one side of the lower container 10a and includes a touch input-based display panel 200 including liquid crystal glass and a touch panel, and the display panel 200 through the display panel 200 . A second substrate 202 that processes a user touch signal and transmits it to the controller 11, or processes an information signal transmitted from the controller 11 unit to output a corresponding output signal to the display panel 200 can

9 is a diagram illustrating a preferred screen configuration of a main screen displayed on a display panel.

Referring to FIG. 9 , various function buttons (manual operation, operation record confirmation, time and date setting, operation test, etc.) and detailed information about the device state may be displayed on the display panel 200 based on a touch input. . Preferably, time display, voltage display, manual operation button, power status display, emission mode selection button, setting button, operation test button, and recovery button may be displayed as shown in the drawings.

The time display displays the current time, and the voltage display displays the voltage input to the device and the presence or absence of abnormality. And the manual operation button is a button display provided to manually start the electric valve unit 17, and when the user touches the manual operation button, the controller 11 recognizes the touch and sends it to the electric valve unit 17. A corresponding electrical signal (signal for starting the electric valve actuating unit) is output.

The release mode selection button is a button for selecting whether to set the extinguishing agent release mode to automatic mode or manual mode. When the automatic button is pressed, the controller 11 interlocked with the detection signal of the first fire detector 12 and the second fire detector 13 ) control is set so that the extinguishing agent is automatically released, and when the manual operation button is pressed, the electric valve unit 17 is immediately actuated as mentioned above regardless of the signals of the first fire detector 12 and the second fire detector 13 command is output.

When the setting button is pressed, it can be programmed to set the screen recovery time, operation record, time and date, and by touching the recovery button, the device state can be restored to the initial setting state.

In the case of the operation test button displayed on the main screen, when the user touches the operation test button, a button for selecting the first fire detector 12 and the second fire detector 13 is displayed, and in that state, the first fire When the sensor 12 button is touched, the controller 11 may be programmed to recognize the touch and output an electrical signal corresponding to the alarm sound generator 14 (a signal for generating a fire alarm sound).

In addition, when both the first fire detector 12 button and the second fire detector 13 button displayed after touching the operation test button are touched, the controller 11 recognizes the touch and corresponds to the electric valve unit 17 . It can be programmed to output an electrical signal (a signal for activating the electric valve unit 17).

In addition, various function buttons, including a preliminary power test button, a main sound stop, and a siren stop, may be displayed on the main screen configuration as shown in the example of FIG. 9 . Of course, the screen configuration shown in FIG. 9 is one preferred embodiment for explaining the present invention, and does not necessarily mean that the screen configuration is limited thereto.

This is because, in addition to the function buttons or information display shown in FIG. 9 , other function buttons or information display may be added, or some of the displayed function buttons or information display may be omitted depending on device specifications.

Hereinafter, we will look at the operation method of the automatic fire extinguishing device for the above-described server rack.

10 is a view illustrating an installation state of an automatic fire extinguishing apparatus for a server rack according to an embodiment of the present invention, and FIG. 11 is a view for explaining an operation mechanism of the automatic fire extinguishing apparatus for a server rack according to an embodiment of the present invention. For convenience of description, the configuration shown in FIGS. 1 to 9 described above will be described with reference to the corresponding reference numerals.

The automatic fire extinguishing apparatus 2 for a server rack according to an embodiment of the present invention may be mounted in a built-in method in a server rack (Sever rack, 1), which is equipment for collecting and stacking servers in one place. Preferably, as shown in the exemplary diagram of FIG. 10 , the drug injection nozzle 19 is located at the top of the receiving space in the server rack 1 in which a plurality of server equipment 4 are arranged in a stacked structure at a predetermined interval. It can be mounted on the server rack (1) to face the equipment (4).

The automatic fire extinguishing apparatus 2 for a server rack according to an embodiment of the present invention installed in this way, as shown in FIG. 11, has an operation mechanism consisting of a preliminary alarm step (S100), a fire alarm step (S200), and an operation step (S300) of the fire extinguishing device. can be operated according to

In the preliminary alarm step (S100), the output of the first fire detector 12 (temperature sensor) reaches the first set value (approximately 55 ~ 95 ℃), or the output of the second fire detector 13, smoke detector) is stopped 3 When the set value is reached, the alarm sound generator 14 operates according to the operation command output by the controller 11 to generate a fire alarm sound.

If, during the fire alarm sound generation, the temperature inside the server rack sensed through the first fire detector 12 again falls below the first set value, the operation of the alarm sound generator 14 may be stopped.

In the fire alarm step (S200), when the output of the first fire detector 12 reaches a second set value (approximately 60 ~ 100 ℃) greater than the first set value, cooling of the server rack according to the control of the controller 11 At the same time that the fan 3 is stopped, a warning message is output through the display unit 20 or a visual alarm displayed on the display unit 20 is flickered, thereby visually recognizing a dangerous situation with an alarm sound. In some cases, the LED for the first fire detector displayed on the display unit 20 may be turned on.

The output of the first fire detector 12 is equal to or greater than the set value (the first set value or the second set value) and the output of the second fire detector 13 (smoke detector) is a preset fourth set value (smoke concentration set value) When reached, the fire extinguishing device operation step (S300) is entered. When the fire extinguishing device operation step (S300) is entered, the electric valve unit 17 is activated under the control of the controller 11, and the chemical discharge port 160 of the extinguishing agent container 16 is opened to release the extinguishing agent.

Here, the numerical ranges exemplified as the first set value and the second set value are approximate ranges for describing an embodiment of the present invention, and do not mean that each set value is necessarily limited to the corresponding numerical range.

According to the structure of the server rack, the number of server equipment mounted in the server rack, the arrangement type, the installation environment of the server rack, etc., the temperature inside the server rack may be slightly different in normal times (when there is no fire). It is preferable to use by appropriately setting the temperature range in which the automatic fire extinguishing device for server racks according to

According to the embodiment of the present invention as described above, it has a compact configuration that can be mounted in a built-in format on a server rack, which is equipment for collecting and stacking servers in one place, and automatically automatically when a fire is detected. By discharging a large amount of extinguishing agent at a wide spray angle to quickly extinguish the initial fire, it is possible to prevent or minimize enormous damage such as equipment damage and data loss due to fire.

In addition, the automatic server rack fire extinguishing device according to an embodiment of the present invention is an electronic control method, and can display or provide various information including preliminary alarms when fire signs are detected, and power supply is interrupted due to power failure or main power failure. Even if it is cut off, normal operation is possible by the internal standby power supply, so normal response is possible even in case of emergency.

Moreover, when heat is detected, a fire warning sound is first generated and output, and when heat and smoke are detected at the same time, the fire extinguishing agent is released to extinguish the fire. It has the advantage of being able to perform integrated monitoring from various angles, and in some cases, it can be operated manually, so the reliability of the product can be improved.

In the above detailed description of the present invention, only specific embodiments thereof have been described. However, it is to be understood that the present invention is not limited to the particular form recited in the detailed description, but rather, it is to be understood to cover all modifications and equivalents and substitutions falling within the spirit and scope of the invention as defined by the appended claims. should be

1: Server rack 2: Automatic fire extinguishing system for server rack
3: cooling fan 4: server (server equipment)
10: housing 10a: lower container
10b: top cover 11: controller
12: first fire detector 13: second fire detector
14: alarm sound generator 15: ringer
16: fire extinguishing agent container 17: electric valve unit
18: pipe or hose 19: chemical injection nozzle
20: display unit 21: spare power
22: power input terminal 23: power switch
24: input/output terminal 102: perforated part
104: through hole 110: first substrate
160: drug outlet 170: valve housing
171: Euro 172: exhaust hole
173: spring 174: actuator
175: coil 176: amateur
177: poppet valve 178: pintle
179: valve shade 190: nozzle body
192: orifice 194: nozzle tip
195: injection hole 200: display panel
202: second substrate

Claims (15)

It is an automatic fire extinguishing device for server rack that is mounted in a built-in method on a server rack (equipment that collects and stacks servers in one place).
A box-shaped structure in which the upper cover is coupled to the upper part of the lower container, the housing having a mounting space therein;
a controller installed in the mounting space of the housing and configured with a first substrate on which a microcomputer is mounted;
A first fire detector and a second fire detector coupled to a structure exposed to the outside at the bottom of the enclosure, detecting a fire sign or fire of a server mounted on a server rack, and transmitting the detected information to the controller;
an alarm sound generator installed inside one side of the lower container and outputting a fire alarm sound from an electrical signal output by the controller to the outside of the housing;
At least one fire extinguishing agent container mounted in the mounting space of the housing and filled with powder or liquid fire extinguishing agent at high pressure therein;
an electric valve unit coupled to the drug outlet side of the extinguishing agent container and operated to open the drug outlet by an electrical signal output by the controller;
a drug injection nozzle coupled to the bottom of the housing in a structure exposed to the outside, and connected to the electric valve unit and a pipe or a hose; and
A server including a; a touch input-based display unit that is connected to exchange information with the controller, displays detailed information about fire and device status in a user-recognizable way, and can control various functions through touch input Automatic fire extinguishing system for rack.
The method of claim 1,
The automatic fire extinguishing device for server rack further comprising; a spare power installed in the mounting space of the enclosure and provided to supply emergency power to the controller and the display unit when the main power is cut off.
The method of claim 1,
Automatic fire extinguishing device for server rack further comprising; a power input terminal provided on the other side of the lower container and a power switch for power on/off, and an input/output terminal for connection with an external device.
4. The method of claim 3,
The external device is a cooling fan installed in a server rack,
In conjunction with the output of the first fire detector, the controller outputs a stop command to the cooling fan through a dedicated cable connected to the input/output terminal.
5. The method of claim 4,
The controller is
When the output of the first fire detector reaches a first preset value or the output of the second fire detector reaches a third preset value, an operation command is preferentially output to the alarm sound generator to generate an alarm,
When the output of the first fire detector reaches a second set value greater than the first set value, an additional stop command is output to the cooling fan to stop the cooling fan,
When the output of the second fire detector reaches the fourth set value greater than the third set value, the electric valve unit is finally activated so that the extinguishing agent is discharged into the server rack through the chemical spray nozzle.
6. The method of claim 5,
The controller is
When the output of the first fire detector reaches the second preset value, the automatic fire extinguishing device for server rack outputs a warning message through the display unit together with stopping the cooling fan or flickers the visual alarm displayed on the display unit.
7. The method according to any one of claims 1 to 6,
the first fire detector is a temperature sensor,
The second fire detector is a smoke detector, an automatic fire extinguishing system for server racks.
The method of claim 1,
The drug injection nozzle is
A nozzle body in which an orifice is formed in the middle of the flow path,
The nozzle body is coaxially coupled to one side of the nozzle body and is composed of a nozzle tip having a smaller diameter than the orifice in the center of the discharge end from which the extinguishing agent is discharged,
Automatic fire extinguishing device for server racks having a structure in which the cross-sectional area gradually increases as the exit side of the injection hole goes down.
The method of claim 1,
A perforated portion composed of a plurality of perforations for outputting the alarm sound generated by the alarm sound generator to the outside of the enclosure is formed on one side of the lower container,
A ringer surrounds the alarm sound generator from the inside of one side of the lower container,
An automatic fire extinguishing device for a server rack in which a through hole communicating with the inner space of the woollimtong is formed on the side adjacent to the perforated part.
The method of claim 1,
The display unit,
A display panel that is installed on one side of the lower container and includes a liquid crystal glass and a touch panel,
Automatic fire extinguishing apparatus for server rack comprising a second board for processing a user touch signal through a display panel and transmitting it to the controller, or processing an information signal transmitted from the controller unit to output a corresponding output signal to the display panel.
The method of claim 1,
A manual operation button capable of manually starting the electric valve unit is displayed on the main screen of the display unit,
When the user touches the manual operation button, the controller recognizes the touch and outputs an electric signal (signal for activating the electric valve unit) corresponding to the electric valve unit.
The method of claim 1,
The operation test button is displayed on the main screen of the display unit,
When the user touches the operation test button, a button for selecting the first fire detector and the second fire detector is displayed,
In that state, when the first fire detector button is touched, the controller recognizes the touch and outputs an electrical signal (signal for generating a fire alarm sound) corresponding to the alarm sound generator.
13. The method of claim 12,
When both the first fire detector button and the second fire detector button displayed after touching the operation test button are touched, the controller recognizes the touch and generates an electrical signal corresponding to the electric valve unit (signal to start the electric valve unit). Automatic fire extinguishing device for server rack that outputs.
As a method of operating the automatic fire extinguishing device for server rack according to claim 1,
a preliminary alarm step in which the alarm sound generator outputs a fire alarm sound when the output of the first fire detector reaches a first set value or the output of the second fire detector reaches a third preset value;
a fire alarm step of stopping the cooling fan of the server rack when the output of the first fire detector reaches a second set value greater than the first set value; and
When the output of the second fire detector reaches a fourth set value that is greater than the third set value, the electric valve unit is activated to operate the fire extinguishing device to open the drug outlet of the extinguishing agent container; How it works.
15. The method of claim 14,
In the fire alarm stage,
A method of operating an automatic fire extinguishing system for a server rack that recognizes a fire situation by outputting a warning message through the display unit or flashing the visual alarm displayed on the display unit, along with stopping the cooling fan.

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