Smoke prevention system of uninterruptible power supply equipment room

Abstract

The present invention relates to a smoke prevention system of an uninterruptible power supply room, wherein, when a fire occurs in any one of multiple uninterruptible power supplies arranged inside the uninterruptible power supply room, smoke of the corresponding uninterruptible power supply is intensively and quickly discharged to quickly extinguish the fire and prevent casualties.

Description

Smoke prevention system in the UPS room

[0001] The present invention relates to a smoke prevention system for an uninterruptible power supply unit room.

[0002] Due to the recent development of the IT industry, loads sensitive to power conditions, such as computers and communication equipment, are increasing, and accordingly, demand for and interest in power sources with stable electricity quality are rapidly increasing.

[0003] However, in general power systems, there is a possibility that unexpected accidents may temporarily limit power supply, and the interruption of computer and information systems due to such power system accidents can cause enormous social loss and confusion.

[0004] Accordingly, the importance of power supply through an uninterruptible power supply (UPS) that provides stable power at all times and prevents the power from being affected by abnormalities such as voltage fluctuations, frequency fluctuations, momentary power outages, and transient power outages is increasing.

[0005] A typical UPS system consists of a rectifier, an inverter, and a battery. When supplied with an external commercial power source, the rectifier converts AC power from the external commercial power source into DC power. Some of the DC power converted by the rectifier is then converted into AC power by the inverter and supplied to the AC load, while the remainder charges the battery.

[0006] When the supply of external commercial power is interrupted, such as during a power outage, the DC power charged in the battery is discharged from the battery, converted into AC power by the inverter, and then supplied to the AC load, thereby ensuring that power is continuously supplied to the AC load even when the supply of power from the external commercial power source is interrupted.

[0007] The battery rack (11) of the uninterruptible power supply room is used by placing multiple battery modules on a shelf and connecting them to each other.

[0008] Referring to Figure 1, the interior of the UPS room (10) has a ventilation facility (12) installed on the ceiling, and in the event of no fire, the air inside the UPS room is ventilated through the ventilation facility.

[0009] Each of these multiple battery modules is at risk of fire due to deterioration caused by increased load and repeated continuous charging and discharging.

[0010] Battery modules emit smoke first when they catch fire, and then the flames rise and spread into a large fire.

[0011] In order to minimize casualties, it is important to quickly exhaust smoke coming from the battery module to the outside, and most importantly, to prevent the fire from spreading to the surrounding area to minimize casualties and economic losses.

[0012] Therefore, it is very important to continuously monitor the temperature of the batteries in the UPS room to predict fire, and in the event of a fire, to quickly exhaust smoke and minimize the spread of fire. Various technologies related to this are being studied.

[0013] The present invention has been devised to solve the above problems, and the purpose of the present invention is to provide a smoke prevention system for an uninterruptible power supply room, which can quickly exhaust smoke from a plurality of uninterruptible power supplies placed inside an uninterruptible power supply room when a fire occurs in any of the uninterruptible power supplies, thereby quickly extinguishing the fire and preventing casualties.

[0014] The tasks of the present invention are not limited to the tasks mentioned above, and other tasks not mentioned will be clearly understood by those skilled in the art from the description below.

[0015] In order to solve the above problem, a smoke prevention system of an uninterruptible power supply room according to the present invention comprises: battery racks arranged at regular intervals inside the uninterruptible power supply room; main ducts arranged on top of the battery racks to exhaust smoke emitted from the battery racks to the outside when a fire occurs; individual dampers installed at regular intervals on the main ducts to be positioned on top of the battery racks to individually open and close the main ducts; a main suction fan installed on the main duct to provide suction force to the main duct; a sub-duct branched from the main duct to exhaust smoke sucked from the main duct to the outside when an error occurs in the main suction fan; and a sub-suction fan installed on the sub-duct to provide suction force to the sub-duct.

[0016] The degree of smoke generated in the above UPS room is sensed by a smoke detection sensor, and the main suction fan sets the suction amount by considering the opening rate and number of individual dampers.

[0017] The smoke detection sensor and temperature detection sensor installed in the above battery rack constantly detect the inside of the uninterruptible power supply room, and in the event of a fire, the individual damper corresponding to the battery rack where the fire occurred is opened, and the individual dampers corresponding to the battery racks in the front, back, left, and right directions of the battery rack where the fire occurred are additionally opened to discharge the smoke together.

[0018] In the event of a fire, a flame retardant sheet installed on the top of the battery rack descends to close the front and rear of the battery rack, thereby preventing the spread of fire. When the flame retardant sheet descends, a shock absorber installed at the bottom of the flame retardant sheet absorbs the recoil force caused by the descending flame retardant sheet, thereby preventing the formation of a gap at the bottom of the flame retardant sheet.

[0019] It includes a sub-damper installed between the branch point of the sub-duct and the sub-suction fan to open and close the sub-duct, and when the main suction fan is operating normally, the sub-damper is closed, and when an error occurs in the main suction fan, the sub-damper is opened to discharge smoke to the outside by driving the sub-suction fan.

[0020] According to the present invention, when a fire occurs in any of a plurality of uninterruptible power supplies placed inside an uninterruptible power supply room, smoke from the uninterruptible power supply is quickly and intensively discharged, thereby quickly extinguishing the fire and preventing casualties.

[0021] Figure 1 is a photograph showing the ventilation facilities inside a conventional uninterruptible power supply unit room.

[0022] Figure 2 is a plan view of a smoke prevention system in an uninterruptible power supply room according to one embodiment of the present invention.

[0023] Figure 3 is a front view of a smoke prevention system in an uninterruptible power supply room according to one embodiment of the present invention.

[0024] Figure 4 is a drawing showing a battery rack and shock absorber of the present invention.

[0025] Figure 5 is a diagram showing a state in which smoke is individually discharged when a fire occurs in an uninterruptible power supply according to one embodiment of the present invention.

[0026] Figure 6 is a plan view of a smoke prevention system in an uninterruptible power supply room according to another embodiment of the present invention.

[0027] The following detailed description of the present invention refers to the accompanying drawings, which illustrate specific embodiments in which the present invention may be practiced. These embodiments are described in sufficient detail to enable those skilled in the art to practice the present invention. It should be understood that the various embodiments of the present invention, while different from each other, are not necessarily mutually exclusive. For example, specific shapes, structures, and characteristics described herein may be implemented in other embodiments without departing from the spirit and scope of the present invention. Furthermore, it should be understood that the positions or arrangements of individual components within each disclosed embodiment may be modified without departing from the spirit and scope of the present invention. Accordingly, the following detailed description is not intended to be limiting, and the scope of the present invention is defined only by the appended claims, along with the full scope of equivalents to which such claims are entitled, if properly described. Like reference numerals in the drawings designate the same or similar functionality throughout the several aspects.

[0028] Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the drawings.

[0029] Inside the existing UPS room, ventilation facilities are installed on the ceiling. When there is no fire, the air is ventilated through the ventilation facilities. When a fire occurs, the ventilation facilities are closed, sealing the inside of the UPS room.

[0030] The present invention provides a method for quickly discharging smoke emitted from a battery module in the event of a fire by additionally installing a smoke prevention system in a state where ventilation facilities are installed inside an uninterruptible power supply room, thereby enabling the smoke to be quickly discharged to the outside.

[0031] First, FIG. 2 is a plan view of a smoke prevention system in a UPS room according to an embodiment of the present invention, and FIG. 3 is a front view of a smoke prevention system in a UPS room according to an embodiment of the present invention.

[0032] A smoke prevention system of an uninterruptible power supply room according to one embodiment of the present invention includes a battery rack (100), a main duct (200), an individual damper (300), a main suction fan (400), a sub duct (500), and a sub suction fan (700).

[0033] The above battery rack (100) can be placed at regular intervals in the space of an uninterruptible power supply (UPS), and the battery rack (100) can be an uninterruptible power supply.

[0034] The battery rack (100) is formed in a roughly rectangular shape, is open at the front and rear, and is configured so that both sides are closed with vertical plates.

[0035] Inside the battery rack (100), shelves are installed at regular height intervals, and battery modules are placed and fixed on the shelves.

[0036] These battery racks (100) can be arranged in series at a certain distance in the front and rear.

[0037] A smoke detection sensor (110) may be installed in each battery rack (100).

[0038] The smoke detection sensor (110) detects the amount of smoke generated inside the uninterruptible power supply room (10), and the detected amount of smoke can be transmitted to the control unit (900).

[0039] A temperature detection sensor (120) may be installed in each battery rack (100).

[0040] The temperature detection sensor (120) detects the temperature generated inside the uninterruptible power supply room (10), and the detected temperature can be transmitted to the control unit (900).

[0041] A flame retardant cloth (130) is installed on the upper part of the battery rack (100) to prevent oxygen from entering by lowering to the lower part of the battery rack (100) in the event of a fire.

[0042] A drive motor (140) for winding a flame retardant cloth (130) is installed on the upper part of the battery rack (100). The drive motor (140) is driven by a 24 V DC power source to wind the flame retardant cloth (130) around a rotating shaft, and when the winding of the flame retardant cloth (130) is completed, it is maintained by a 12 V DC power source.

[0043] A clutch may be installed on the above-mentioned rotary shaft, and the clutch is used to fix the rotary shaft, in a state where the flame retardant cloth (130) is wound, from rotating when a fire is not detected, and when a fire is detected, the power supply is cut off to release the fixing force that was fixing the rotary shaft, thereby creating conditions in which the rotary shaft can rotate.

[0044] The lower part of the above flame retardant fabric (130) may include a shock absorbing part (150).

[0045] Referring to FIG. 4, the shock absorbing member (150) may include a case (151), a repulsive force absorbing member (152), and a buffer member (153).

[0046] The above case (151) is fixed at a certain interval to the lower part of the flame retardant fabric (130), and a space can be formed inside.

[0047] The above-mentioned rebound force absorbing member (152) is formed with a certain diameter and can be inserted in multiple pieces into the space inside the case (151). Accordingly, when a rebound force is generated as the flame retardant fabric (130) descends due to a fire outbreak, the rebound force absorbing member (152) moves upward within the space and absorbs the rebound force.

[0048] Accordingly, even if the flame retardant fabric (130) is lowered quickly due to its own weight, the repulsive force absorbing member (152) can offset this, so that even after the flame retardant fabric (130) is lowered, the gap can be minimized to effectively block the oxygen supply.

[0049] The above buffer member (153) is formed at the bottom of the case (151) and may be formed of rubber or liquid silicone (LSR) material.

[0050] The buffer member (153) may be attached to the inner bottom of the tank (160) or may be attached to the bottom surface of the uninterruptible power supply unit room (10).

[0051] The buffer member (153) primarily absorbs the impact when the flame retardant fabric (130) descends, and then the rebound force absorbing member (152) absorbs the impact secondarily, thereby preventing the flame retardant fabric (130) from being bounced upward by the rebound force.

[0052] A water tank (160) is installed at the bottom of the above battery rack (100), and a fire extinguishing agent spraying unit (170) is installed at the upper central part of the battery rack (100) through which a pipe is introduced from the outside to spray fire extinguishing agent.

[0053] The pipe of the digestive fluid injection unit (170) may be equipped with injection nozzles each positioned at the top of the battery rack (100).

[0054] Accordingly, in the event of a fire, the fire extinguishing agent can be sprayed through the spray nozzle of the fire extinguishing agent spray unit (170) while the fire retardant cloth (130) is lowered, and the sprayed fire extinguishing agent is stored in a tank (160). A drain unit may be provided on one side of the tank, and the fire extinguishing agent stored in the tank can be discharged as needed.

[0055] The above main duct (200) can be placed on top of the battery rack (100) inside the uninterruptible power supply room (10) and connected to the outside of the building.

[0056] The main duct (200) is a passage that discharges smoke generated in the event of a fire to the outside, and the internal diameter of the main duct (200) may vary depending on the number of battery modules placed.

[0057] The above individual dampers (300) are installed on the main duct (200) and can be installed at regular intervals toward the top of the battery rack (100).

[0058] That is, individual dampers (300) are placed on the top of each battery rack (100) to enable quick discharge of smoke.

[0059] The individual damper (300) can be opened and closed by driving the motor, and the individual damper (300) is connected to the control unit (900) and can be operated by the control of the control unit (900).

[0060] The individual damper (300) is configured to be closed in normal times and open in the event of a fire.

[0061] At this time, the individual damper (300) placed on the upper part of the battery rack (100) where no fire occurred is maintained in a closed state.

[0062] That is, the smoke detection sensor (110) and temperature detection sensor (120) installed on the upper part of the battery rack (100) are always supplied with power to detect the inside of the uninterruptible power supply room (10).

[0063] When smoke is detected through the detection of the above smoke detection sensor (110) and temperature detection sensor (120), the control unit (900) opens the individual duct (300) of the corresponding uninterruptible power supply, and closes the individual duct (300) around the corresponding uninterruptible power supply to intensively discharge the smoke.

[0064] When a fire is detected through the detection of the above smoke detection sensor (110) and temperature detection sensor (120), the control unit (900) opens the individual duct (300) of the corresponding uninterruptible power supply, and opens the individual dampers (300) corresponding to the uninterruptible power supply in the left, right, front, and rear directions of the corresponding uninterruptible power supply, and the individual dampers (300) of the uninterruptible power supply in which no fire has occurred are closed.

[0065] When a fire occurs as described above, the rotation speed of the main suction fan (400) or the sub suction fan (700) can be adjusted by controlling the control unit (900) to control the suction amount, and the control unit (900) transmits a notification message to the management office and the fire department in charge.

[0066] That is, in the present invention, when a fire occurs in one UPS, a total of five individual dampers (300), including one individual damper (300) corresponding to the UPS where the fire occurred and four individual dampers (300) corresponding to the front, rear, left, and right UPSs, are opened to intensively discharge smoke, thereby effectively blocking the spread of fire and enabling a rapid fire response.

[0067] In the present invention, when smoke is detected, the flame retardant cloth (130) may not be lowered, and when a fire occurs, the flame retardant cloth (130) is lowered to block the inflow of oxygen and the individual damper (300) of the uninterruptible power supply where the fire occurred is opened to discharge the smoke.

[0068] The above main suction fan (400) can be installed at the rear of the individual damper (300).

[0069] The main suction fan (400) provides suction power to the passage inside the main duct (200) so that smoke generated from the battery module can be quickly discharged to the outside in the event of a fire.

[0070] The above individual damper (300) and main suction fan (400) are connected to the control unit (900) and operate under the control of the control unit (900).

[0071] The above main suction fan (400) operates according to the opening signal of the individual damper (300), and when the individual damper (300) is opened, the main suction fan (400) operates to discharge smoke.

[0072] That is, the smoke detection sensor (110) placed in the entire battery rack (100) inside the uninterruptible power supply room (10) detects smoke.

[0073] The control unit (900) receives the detected signal and sets the opening rate of the individual damper (300) and at the same time detects the number of individual dampers (300) corresponding to the battery rack (100) where the fire occurred and sets the suction power of the main suction fan (400).

[0074] Accordingly, the present invention can intensively suck up smoke coming out of a battery rack (100) where a fire has occurred and discharge it to the outside, thereby enabling a quick response to a fire.

[0075] In addition, the subduct (500) is configured to discharge smoke from the main duct (200) passage to the outside when smoke is not discharged to the outside through the main duct (200).

[0076] The subduct (500) branches off from the main duct (200) and extends to the outside.

[0077] The subduct (500) can discharge smoke to the outside when an error occurs in the main suction fan (400).

[0078] The above sub-suction fan (700) is installed on the sub-duct (500) and is configured to suck smoke discharged through the main duct (200) toward the sub-duct (500) and discharge it.

[0079] The sub-suction fan (700) can be installed on the sub-duct (500) behind the sub-damper (600).

[0080] The above sub-suction fan (700) is connected to the control unit (900) and operates under the control of the control unit (900).

[0081] When an error occurs in the main suction fan (400), the control unit (900) operates the sub suction fan (700) to change the path of the smoke discharged through the main duct (200) toward the sub duct (500). Accordingly, even when the smoke is not discharged toward the main duct (200) due to an error, the delay in smoke discharge is prevented, the smoke is prevented from flowing back into the uninterruptible power supply room (10), and the smoke can be quickly discharged toward the sub duct (500).

[0082] Additionally, a sub-damper (600) may be further included between the branch point of the main duct (200) and the sub-duct (500) and the sub-suction fan (700).

[0083] The sub-damper (600) prevents smoke from flowing back toward the sub-duct (500) when smoke is discharged toward the main duct (200).

[0084] The sub-damper (600) is connected to the control unit (900) and operates under the control of the control unit (900). Accordingly, when an error occurs in the main suction fan (400), the sub-damper (600) can be opened to change the passage, and the sub-suction fan (700) can be operated to exhaust smoke to the outside through the sub-duct (700).

[0085] In addition, referring to FIG. 6, the smoke prevention system of the UPS room according to another embodiment of the present invention may further include an air supply unit (800) that supplies outside air to the internal space of the UPS room when fire suppression is completed.

[0086] The above air supply unit (800) may include an air supply pipe (810), a filter unit (820), and a suction pump (830).

[0087] The above air supply pipe (810) can be arranged to connect the interior space of the uninterruptible power supply room and the exterior.

[0088] The end of the air supply pipe (810) does not need to be extended to a certain length inside the uninterruptible power supply room; it only needs to satisfy the condition of being connected to the inside of the uninterruptible power supply room.

[0089] The above filter unit (820) can be installed on the air supply pipe (810).

[0090] The filter unit (820) filters foreign substances contained in the external air flowing in through the air supply pipe (810) and supplies only clean air to the inside of the uninterruptible power supply unit room.

[0091] The above suction pump (830) sucks in outside air and supplies it into the uninterruptible power supply room through the air supply pipe (810).

[0092] Here, the suction pump (830) is connected to the control unit (900), and the suction pump (830) can be operated under the control of the control unit (900).

[0093] The above suction pump (830) may rotate at a different speed depending on the amount of smoke discharged from inside the uninterruptible power supply room, thereby changing the amount of external air supplied.

[0094] The above air supply pipe (810) may include a temperature control unit (840) that controls the temperature of the outside air.

[0095] The above temperature control unit (840) may include a heating unit (841) and a cooling unit (842).

[0096] The above heating unit (841) heats cold outside air to room temperature, and the cooling unit (842) cools warm outside air. Accordingly, the temperature of the outside air can be adjusted to a preset temperature and supplied to the inside of the uninterruptible power supply unit room (10).

[0097] An external temperature sensor (843) is installed outside the above uninterruptible power supply unit room (10).

[0098] The temperature detection sensor (120) and the external temperature sensor (843) detect the temperature inside the uninterruptible power supply room (10) and outside the building, and the control unit (900) determines whether to heat or cool the outside air based on the detected temperature and operates the temperature control unit (840).

[0099] That is, when the season is summer, the temperature of the outside air is detected to be higher than 30 degrees, and the control unit (900) receives the temperatures detected from the temperature detection sensor (120) and the outside temperature sensor (843) respectively, detects the temperature difference, and the control unit (900) controls the cooling unit (842) according to the temperature difference between the temperature inside the uninterruptible power supply room (10) and the outside air, and the cooling unit (842) cools the air at room temperature and supplies air at an appropriate temperature inside the uninterruptible power supply room (10).

[0100] In addition, when the season is winter, the temperature of the outside air is detected to be lower than 0 degrees, and the control unit (900) receives the temperatures detected from the temperature detection sensor (120) and the outside temperature sensor (843), detects the temperature difference, and the control unit (900) controls the heating unit (841) according to the temperature difference between the temperature inside the uninterruptible power supply room (10) and the outside air, and the heating unit (841) heats the low-temperature air and supplies air of an appropriate temperature inside the uninterruptible power supply room (10). Accordingly, the air inside the uninterruptible power supply room (10) can be quickly normalized, and can also be helpful for follow-up measures after extinguishing a fire.

[0101] Although the preferred embodiments of the present invention have been illustrated and described above, the present invention is not limited to the specific embodiments described above, and various modifications may be made by those skilled in the art without departing from the gist of the present invention as claimed in the claims. Furthermore, such modifications should not be understood individually from the technical idea or prospect of the present invention.

Claims

1. Battery racks placed at regular intervals inside the UPS room; A main duct, which is placed on the upper part of each of the above battery racks and discharges smoke emitted from the battery rack to the outside in the event of a fire; Individual dampers installed at regular intervals on the main duct to be positioned above the battery rack and individually open and close the main duct; A main suction fan installed in the main duct above to provide suction power to the main duct; A subduct branching from the main duct to discharge smoke sucked from the main duct to the outside when an error occurs in the main suction fan; A smoke prevention system in an uninterruptible power supply room, comprising a sub-suction fan installed in the above sub-duct and providing suction force to the sub-duct.

2. In claim 1, A smoke prevention system in an uninterruptible power supply room that senses the degree of smoke generated in the above uninterruptible power supply room using a smoke detection sensor, and sets the suction amount of the main suction fan by considering the opening rate and number of individual dampers.

3. In claim 1, The smoke detection sensor and temperature detection sensor installed on the above battery rack always detect the inside of the UPS room. A smoke prevention system in an uninterruptible power supply room that opens the individual damper corresponding to the battery rack where the fire occurred in the event of a fire, and additionally opens the individual dampers corresponding to the battery racks in the front, back, left, and right directions of the battery rack where the fire occurred to discharge smoke together.

4. In claim 1, In case of fire, the flame retardant fabric installed on top of the battery rack descends to close the front and rear of the battery rack, preventing the spread of fire. A smoke prevention system in an uninterruptible power supply room, in which a shock absorbing part installed at the bottom of the flame retardant fabric absorbs the recoil force caused by the lowering of the flame retardant fabric when the flame retardant fabric is lowered, thereby preventing the formation of a gap at the bottom of the flame retardant fabric.

5. In claim 1, It includes a sub-damper installed between the branch point of the above sub-duct and the sub-suction fan to open and close the sub-duct, A smoke prevention system in an uninterruptible power supply room that closes the sub-damper when the main suction fan is operating normally, and opens the sub-damper when an error occurs in the main suction fan to discharge smoke to the outside by driving the sub-suction fan.

Images