KR102659500B1 - Cooling device for energy storage system with fire detection flow path - Google Patents

Abstract

A cooling device for an energy storage system having a fire detection flow path is provided.
The present invention is an energy storage system equipped with a plurality of batteries loaded in the indoor space of a container, and is equipped with an evaporator, compressor, and condenser in which refrigerant circulates in one direction, and a device for cooling the indoor space of the container to maintain a constant temperature, An exterior equipped with a first inlet and a first outlet on one side corresponding to the indoor space, a second inlet and a second outlet on the other side corresponding to the outdoors, and a condenser fixed to the inner surface corresponding to the second outlet. case ; Equipped with a first driving fan that forcibly sucks in air through the first intake port, and a second driving fan that forcefully sucks outside air through the second intake port, and an evaporator is fixedly installed inside corresponding to the first outlet, , an interior case coupled to the interior of the exterior case to form an intake and exhaust space where the condenser and the second driving fan are installed; A detection unit equipped with a pair of guide plates fixedly installed in the exhaust space and equipped with at least one gas detection sensor disposed between the pair of guide plates to detect harmful gases contained in the gas remaining between the pair of guide plates. May include ;.

Description

Cooling device for energy storage system with fire detection flow path}

The present invention relates to a cooling device applied to an energy storage system. More specifically, the present invention relates to a cooling device applied to an energy storage system. In more detail, the harmful gas contained in the smoke generated in the event of a battery fire is quickly and accurately detected by a gas detection sensor in the process of sucking and circulating it along with the circulating air. It relates to a cooling device for an energy storage system that has a fire detection channel that can take follow-up measures and increase the detection efficiency of harmful gases.

In general, an energy storage system (ESS) is a system that stores energy in the form of power and supplies it when power is needed, such as during a power outage or power shortage.

This energy storage system is managed and operated by stacking batteries that are charged with generated electricity in multiple layers inside a container, such as a case, to secure an appropriate operating voltage and charging capacity to sufficiently store power.

In this energy storage system, the heat generated from each battery directly affects the efficiency and lifespan of the battery. The larger the charging and discharging capacity of the battery, the more electrical energy is consumed as thermal energy, generating a lot of heat, so the battery Technology is needed to maximize battery performance by effectively dissipating and cooling generated heat.

In other words, the battery built in the energy storage system shows high charging and discharging efficiency at 15 to 30 ℃, preferably 20 to 25 ℃, and for this reason, the energy storage system is equipped with a heater, a cooling unit, and a temperature control unit to control the temperature of the container. In addition to the internal temperature, there is a need to keep the temperature of the battery loading area constant at approximately 20~25℃.

Accordingly, in order to keep the temperature of the battery loading area constant, various cooling methods have been used in the past, such as using a fan from the top of the container to quickly move cold air to the bottom or inserting a refrigerant pipe into the wall of the container adjacent to the battery loading area. has been using.

On the other hand, when the heat generation or overheating of the battery fails to dissipate the heat generation by reducing the internal temperature through the cooling method, or when the battery cooling does not occur smoothly, especially in summer, the accumulated heat may damage the battery cells and modules of the energy storage system. , thermal runaway (below 170°C to 70°C) occurred in the pack, leading to ignition and explosion, resulting in the power plant's energy storage system being completely burned down.

(Patent Document 1) KR10-1970236 B1

(Patent Document 2) KR10-2050803 B1

Patent Document 1 includes two or more cells that provide a stacking space in which battery devices are stacked and are arranged adjacent to each other so that at least part of them communicates, and a communication portion between the neighboring cells is provided to allow air from one cell to flow to another cell. An enclosure for an energy storage system is equipped with an air circulation device that circulates air by supplying it to one cell and a temperature control device that regulates the temperature of the air inside the cell, thereby controlling the temperature inside the enclosure to an appropriate temperature and preventing fire. It is starting.

Patent Document 2 detects fire precursors in battery-intensive energy storage systems such as lithium-ion batteries, and simultaneously sprays gas, liquid, and powder extinguishing agents into the energy storage system based on the detected fire precursor data to prevent fires in the energy storage system. and an automatic fire extinguishing system for detecting and preventing the spread of energy storage device fires to prevent explosions.

However, in the case of Patent Document 1, there is an advantage of preventing fire occurrence by maintaining the temperature inside the enclosure at a constant temperature, but it is possible to accurately and quickly detect a fire that unexpectedly occurs inside the energy storage system and recognize the occurrence of a fire at an early stage. There was a weak problem with the follow-up function.

In the case of Patent Document 2, it has the advantage of detecting fire precursors early and preventing the fire that occurred based on the detected fire precursor data from expanding or causing continuous explosion of the battery, but in the event of a battery fire, the salt of the battery electrolyte Highly explosive and highly toxic hydrogen-based fire gases such as hydrogen chloride (HCL) gas, hydrogen fluoride (HF) gas, and hydrogen (H) gas generated by thermal decomposition of excess solvent, and thermal decomposition of lithium oxide on the battery positive electrode. It is difficult to accurately and quickly detect carbon-based fire-generating gases such as carbon monoxide (C0) and carbon dioxide (CO2) with a detection sensor, and it is difficult to replace and repair the detection sensor during regular detector inspection, resulting in high management and maintenance costs. It served as the main cause of the increase.

In addition, the configuration disclosed in Patent Document 1 and Patent Document 2 had limitations in increasing cooling efficiency and heat exchange efficiency because the structure of dividing indoor air and outdoor air and circulating them to exchange heat in the evaporator and condenser respectively was not efficient.

Therefore, the present invention is intended to solve the problems described above, and its purpose is to detect the gas that is initially generated proactively due to an increase in the internal temperature of the battery shell and the gas that is generated later when the battery shell ruptures. This is a cooling system for energy storage systems that can predict the fire state of the battery, has a simple structure, and can circulate indoor and outdoor air efficiently, while also having a fire detection channel that can increase the detection efficiency of harmful gases. We would like to provide a device.

The technical problems to be achieved in the present invention are not limited to the technical problems mentioned above, and other technical problems not mentioned will be clearly understood by those skilled in the art from the description below. You will be able to.

As a specific means for achieving the above object, a preferred embodiment of the present invention is an energy storage system equipped with a plurality of batteries loaded in the interior space of the container, and the container is equipped with an evaporator, compressor, and condenser in which the refrigerant is circulated in one direction. A device for cooling an indoor space to maintain a constant temperature, provided with a first inlet and a first outlet on one side corresponding to the indoor space, and a second inlet and a second outlet on the other side corresponding to the outdoors. , an external case for fixedly installing the condenser on the inner surface corresponding to the second outlet; Equipped with a first driving fan that forcibly sucks in air through the first intake port, and a second driving fan that forcefully sucks outside air through the second intake port, and an evaporator is fixedly installed inside corresponding to the first outlet, , an interior case coupled to the interior of the exterior case to form an intake and exhaust space where the condenser and the second driving fan are installed; It is equipped with a pair of guide plates fixedly installed between the first driving fan and the evaporator, and is equipped with at least one gas detection sensor disposed between the pair of guide plates to prevent harmful substances contained in the gas staying between the pair of guide plates. Provided is a cooling device for an energy storage system having a fire detection passage, including a detection unit that senses and detects gas.

At this time, the interior case has an upper chamber in which the first driving fan is fixedly installed in the intake space corresponding to the first intake port, and both flanges extending from both sides of the evaporator are fixedly installed in the exhaust space communicating with the intake space. It may include an intermediate partition interposed between the upper chamber and the lower chamber by forming a circular opening through an upper surface corresponding to the lower chamber and the first driving fan.

At this time, it includes a dehumidifying unit that removes moisture contained in the internal air supplied downward to exchange heat with the evaporator, wherein the dehumidifying unit includes a thermocouple frame including a thermocouple that generates heat when power is applied, and a thermocouple frame directly below the thermocouple through which the internal air passes. It may include at least one humidity sensor that measures the humidity of the bet.

At this time, one side of the interior case corresponding to the space between the exhaust space and the intake/exhaust space can reduce the passage cross-sectional area of the exhaust space from the top to the bottom, and reduce the passage cross-sectional area of the intake/exhaust space from the bottom to the top. It may include an inclined plate inclined at a certain angle.

At this time, the pair of guide plates may include a lower inclined bending plate that opens outward at a certain angle from the bottom of the upper vertical plate so that the width of the outlet side through which the bet is discharged downward is wider than the width of the inlet side into which the bet flows. there is.

At this time, the gas detection sensor may include a first gas detection sensor that selectively detects hydrogen-based fire gases and a second gas detection sensor that selectively detects carbon-based fire gases.

At this time, on one side of the interior case corresponding to the intake and exhaust space, an opening is formed through the exhaust space and the intake and exhaust space to communicate with each other, an opening and closing plate that covers and blocks the opening or opens at a distance, and an opening and closing plate that is integrated at the top of the opening and closing plate. It is provided with, and may include a drive motor that opens and closes the opening and closing plate by connecting one end of a rotating shaft rotatably assembled to the upper edge of the opening and a driving shaft.

According to a preferred embodiment of the present invention as described above, the following effects are achieved.

The harmful gas generated in the event of a container battery fire comes into contact with the detection stage of the gas detection sensor while passing between a pair of guide plates provided in the exhaust space, thereby detecting the harmful gas contained in the vapor temporarily staying between the pair of guide plates. The detection efficiency and accuracy of the gas detection sensor can be improved, and since hydrogen-based harmful gases and carbon-based harmful gases generated in the event of a battery fire can be selectively detected and confirmed, fire suppression can be carried out in advance according to the detected and confirmed harmful gases. You can prepare and prevent personal accidents.

In addition, by communicating the exhaust space and intake/exhaust space with the gas detection signal generated in the event of a fire, the smoke generated in the event of a fire can be quickly discharged to the outside along with the harmful gases, so a large number of batteries and internal parts provided in the container This minimizes or prevents the container from being seriously contaminated or damaged by smoke, thereby restoring the battery and internal parts of the container to their original state after the fire is extinguished, and reducing the cost of restoration.

Figure 1a is an external perspective view of a cooling device for an energy storage system having a fire detection passage according to an embodiment of the present invention as seen from the indoor side.
Figure 1b is an external perspective view of a cooling device for an energy storage system having a fire detection passage according to an embodiment of the present invention as seen from the outdoor side.
Figure 2a is an external perspective view of the built-in case of a cooling device for an energy storage system having a fire detection passage according to an embodiment of the present invention as seen from the indoor side.
Figure 2b is an external perspective view of the built-in case of a cooling device for an energy storage system having a fire detection passage according to an embodiment of the present invention as seen from the outdoor side.
Figures 3a and 3b are exploded perspective views of components related to the built-in case of a cooling device for an energy storage system having a fire detection passage according to an embodiment of the present invention.
Figure 4 is a longitudinal cross-sectional view of a cooling device for an energy storage system having a fire detection passage according to an embodiment of the present invention.
Figure 5 is a configuration diagram showing the circulation state of indoor air and outdoor air in a cooling device for an energy storage system having a fire detection passage according to an embodiment of the present invention.
Figure 6 is a detailed view showing an opening and closing portion applied to a cooling device for an energy storage system having a fire detection passage according to an embodiment of the present invention.

Hereinafter, with reference to the attached drawings, preferred embodiments that allow those skilled in the art to easily practice the present invention will be described in detail. However, when explaining in detail the structural principles of a preferred embodiment of the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the gist of the present invention, the detailed description will be omitted.

In addition, the same reference numerals are used for parts that perform similar functions and actions throughout the drawings.

Additionally, throughout the specification, when a part is said to be 'connected' to another part, this does not only mean 'directly connected', but also 'indirectly connected' with another element in between. Includes. Additionally, 'including' a certain component does not mean excluding other components unless specifically stated to the contrary, but rather means that other components can be further included.

According to a preferred embodiment of the present invention, the cooling device 100 for an energy storage system having a fire detection passage according to an embodiment of the present invention is installed inside the container, as shown in FIGS. 1A, 1B and 2A, 2B. In an energy storage system equipped with multiple batteries that charge electricity generated in space, the evaporator (1), compressor (2), condenser (3), and an expansion valve in which the refrigerant circulates in one direction are installed to keep the internal space of the container constant. It may include an external case 10, an internal case 20, and a detection unit 30 to detect harmful gases contained in smoke generated during a fire while cooling to maintain the temperature and take follow-up measures.

As shown in FIGS. 1A and 1B, the exterior case 10 includes a first intake port 11, which is an inlet for sucking internal air, on one side corresponding to the indoor space of the container, and the evaporator It includes a first discharge port (12), which is an outlet that heat exchanges with (1) and discharges the cooled internal air into the room, and includes a second intake port (13) that is an inlet that intakes outside air, which is external air, on the other side corresponding to the outdoors. And, it may include a second outlet 14, which is an outlet for discharging outdoor air heated by heat exchange with the condenser 3 to the outdoors.

The first intake port 11 is a plurality of holes formed through a square plate that is detachably assembled to the upper inlet cut in one upper side of the exterior case 10 to expose the top of the interior case 20 to the outside. It is provided by two through holes, and the first outlet 12 may be provided by a plurality of other through holes formed through one lower side of the exterior case 10.

The second intake port 13 is provided by a plurality of through holes formed through a plate that is detachably assembled on the other side of the exterior case so that the second driving fan, which will be described later, can be exposed to the outside, and the second outlet ( 14) may be provided with a plurality of through holes formed through another plate that is detachably assembled on the other side of the exterior case so that the condenser 3 can be exposed to the outside.

At this time, the condenser 3 is equipped with a plurality of fin members where refrigerant lines through which the refrigerant circulates intersect, and is a heat exchange member that exchanges heat with the outside air, which is forced in through the second inlet and discharged to the second outlet.

This condenser 3 can be fixedly and detachably installed on the inner surface of the exterior case 10 corresponding to the second outlet 14 using a plurality of fastening members.

As shown in FIGS. 2A, 2B, 3A, 3B, and 4, the built-in case 20 operates a fan when power is applied to forcibly suck air from the indoor space through the first suction port 11. It includes a first driving fan 21 that is driven when power is applied to forcibly suck in external air, which is external air, through the second intake port 13, and a second driving fan 22 that is driven by the first outlet port 13. It may include an evaporator (1) which is fixedly installed inside corresponding to (12) and exchanges heat with the internal air forcefully sucked by the first driving fan (21) to cool the internal air.

This built-in case 20 is installed with a condenser 3 corresponding to the second outlet 14 and a second driving fan 22 corresponding to the second intake port 13, and the outside air sucked from the bottom is supplied to the upper part. It is a case member that is coupled to the inside of the exterior case 10 so as to have an intake/exhaust space (S3) that forms an exhaust flow path from the side.

The internal case 20 includes an upper chamber 20a for fixing the first driving fan 21 in the intake space S1 corresponding to the first intake port 11, and the intake space S1 and It includes a lower chamber (20b) in which flanges on both sides extending from both sides of the evaporator (1) are fixedly installed in the communicating exhaust space (S2), and a circular opening (23a) on the upper surface corresponding to the first driving fan. It may include an intermediate partition 23 interposed between the upper chamber 20a and the lower chamber 20b.

The first driving fan 21 is detachably fixed to the first fan bracket 21a provided horizontally in the intake space of the upper chamber 20a and operates through the circular opening 23a when power is applied. 1It is a fan member that blows the air forcefully sucked in through the inlet directly downward.

At this time, it is preferable that the circular outlet (21b) formed in the fan casing of the first driving fan (21) is in contact with the circular opening (23a) and is tightly assembled.

The second driving fan 22 is coupled to a second fan bracket 22a provided vertically on one lower side of the lower chamber 20b and forces the outside air to be sucked in through the second intake port 113 when power is applied. There is no fan.

The evaporator (1) is a heat exchange member that is equipped with a plurality of fin members where refrigerant lines through which the refrigerant circulates intersect, and exchanges heat with the internal air discharged to the first outlet to cool the internal air.

The evaporator 1 may be fixedly and detachably installed inside the lower end of the exhaust space S2 of the interior case 20 corresponding to the first outlet 12 by a plurality of fastening members.

In addition, the step portion provided between the upper chamber 20a and the lower chamber 20b is supported in contact with the upper end of the condenser 3 fixed to the inner surface of the exterior case 10, thereby supporting the interior case 20. Can be stably coupled and fixedly installed inside the exterior case.

Meanwhile, the exhaust gas is forcibly sucked into the intake space (S1) of the built-in case through the first intake port (11) by the first driving fan (21) and then communicates with the intake space to exchange heat with the evaporator (1). It may include a dehumidifying unit that removes moisture contained in the air supplied downward to the space (S2).

This dehumidifying unit includes a thermocouple frame 26 including a thermocouple 27 that generates heat when power is applied, and at least a thermocouple frame 26 that measures the humidity of the indoor air in an electrical resistance or capacitive manner directly below the thermocouple through which the air passes. It may include one humidity sensor (27a).

At this time, the thermocouple frame 26 is mounted on the upper part of the evaporator 1 and is detachably attached to the upper part of the control panel box 24 and a plurality of fastening members that are fixedly installed to be located in the exhaust space S2. It is preferable that it is coupled and fixedly installed in the downward flow path of the air supplied downward from the intake space to the exhaust space.

A control unit including a plurality of electrical components is installed inside the control panel box 24, and the control panel 24a can be covered and sealed on one open side of the control panel box.

Accordingly, the moisture contained in the bet that is forcibly sucked into the intake space and supplied downward toward the exhaust space is measured in real time by the humidity sensor, and the measured humidity of the bet is measured to be higher than a preset standard value, thereby increasing the humidity of the bet. If is high, the humidity sensor transmits a power application signal to the control unit to remove moisture contained in the air by generating heat from the thermocouple.

Conversely, if the humidity of the air measured by the humidity sensor matches a preset reference value or is measured to be low, the humidity sensor may transmit a power-off signal to the control unit to stop the heat generation of the thermocouple.

In addition, one side of the interior case 20 corresponding to the space between the exhaust space S2 and the intake and exhaust space S3 reduces the passage cross-sectional area of the exhaust space S2 from the top to the bottom, and the intake and exhaust space It may include an inclined plate 25 inclined at a certain angle so that the cross-sectional area of the passage (S3) can be reduced from the bottom to the top.

Accordingly, the flow of air that is forcibly sucked into the intake space through the first intake port by the inclined plate and then discharged downward from the exhaust space toward the evaporator is accelerated to increase heat exchange efficiency with the evaporator, and the first outlet is The discharge flow of internal air through the air can be performed more smoothly, and the heat exchange efficiency with the condenser is increased by accelerating the flow of outside air that is sucked into the intake and exhaust space through the second intake port and then discharged upward from the intake and exhaust space to the condenser. , the discharge flow of outdoor air through the second outlet can be performed more smoothly.

In addition, the lower chamber 20b, which is the exhaust space, may include a drain part that collects dew that falls from the surface of the evaporator when heat is exchanged between the evaporator and the internal air and discharges the drain to the outside.

The drain part includes a drain pipe 28 of a certain length, one end of which is connected to an inlet port 28a installed on one side of the bottom of the lower chamber where the evaporator 1 is installed, and the other end of the drain pipe is an external case. By connecting to the outlet port 28b installed on the bottom of the lower chamber, dew collected on the bottom of the lower chamber can be discharged to the outside through the drain pipe.

As shown in FIGS. 3A, 3B, and 4, the detection unit 30 is forcibly sucked into the intake space (S1) and discharged into the exhaust space (S2) when a fire occurs inside the container. It detects and detects harmful gases contained in the bet in real time.

This detection unit 30 is equipped with a pair of guide plates 33 fixed to the exhaust space S2 corresponding to the first driving fan 21 and the evaporator 1, and the pair of guide plates It may include at least one gas detection sensor (34, 35) disposed between (33) and detecting harmful gas contained in the gas temporarily staying between the pair of guide plates.

The pair of guide plates 33 is a lower inclined bending plate 32 that is spread outward at a certain angle from the lower end of the upper vertical plate 31 so that the width of the outlet side through which the inside is discharged downward is wider than the width of the inlet side through which the inside enters. ) may include.

A pair of guide plates 33 consisting of the upper vertical plate 31 and the lower inclined bent plate 32 have a width of the outlet side through which the inside is discharged downwards, which is wider than the width of the inlet side into which the inside enters, making the pair of guide plates 33 Since the downward flow of gas passing between the guide plates 33 can be temporarily retained, the gas detection efficiency detected by the gas detection sensors 34 and 35 can be increased.

At this time, on the inner surface of the upper vertical plate of the pair of guide plates 33 facing each other, the gas detection sensors 34, 35 are installed to increase gas detection efficiency by extending the residence time of the gas while colliding with the gas passing downward. It may include at least one protruding plate disposed adjacently.

In addition, the gas detection sensor detects highly explosive and toxic hydrogen-based gases such as hydrogen chloride (HCL) gas, hydrogen fluoride (HF) gas, and hydrogen (H) gas, which are generated by thermal decomposition of salts and solvents in the battery electrolyte during a battery fire. A first gas detection sensor 34 that detects fire gases, and a second gas that detects carbon-based fire gases such as carbon monoxide (C0) and carbon dioxide (CO2) generated by thermal decomposition of the lithium oxide of the battery positive electrode. It may include a detection sensor (35).

The detection signals of the gas detection sensor 34, which detects hydrogen-based fire gases, and the gas detection sensor 35, which detects carbon-based fire gases, are transmitted to the integrated control center or fire station through the control unit to determine the level of fire generated in the event of a fire. By recognizing the type of harmful gas in advance, it is possible to establish and respond in advance to extinguish a fire that occurs in an energy storage system loaded with batteries, so that follow-up measures can be taken according to the type of harmful gas generated. During the suppression process, casualties due to inhalation of harmful gases can be prevented.

In addition, the detection unit 30 is shown as being provided directly below the dehumidification unit to increase the detection efficiency of the gas detection sensor by slowing down the speed of the gas passing through the thermocouple and moving downward between the pair of guide plates. Although explained, it is not limited to this and can be provided side by side.

Figure 5 is a configuration diagram showing the circulation state of indoor air and outdoor air in a cooling device for an energy storage system having a fire detection passage according to an embodiment of the present invention.

As shown in FIG. 5, air from the indoor space inside the container is forcibly sucked into the intake space of the upper chamber (20a) by the first driving fan (21), and then through the circular opening of the intermediate partition (23). It is supplied downward to the exhaust space (S2) of the lower chamber (20b), and the cooled air through heat exchange with the evaporator (1) is circulated and supplied to the indoor space through the first outlet (12).

In addition, the outside air, which is external air, is forcibly sucked into the intake and exhaust space (S3) by the second driving fan (22) and then between the inner surface of the exterior case (10) and the inclined plate (25) of the interior case (20). It is supplied upward from the bottom to the top in the formed intake and exhaust space (S3), and the outdoor air heated by heat exchange with the condenser is circulated and discharged outdoors through the second outlet (14).

Meanwhile, the harmful gas generated in the event of a fire inside the container is supplied downward to the exhaust space (S2) of the lower chamber (20b) along with the inside, and temporarily stays in the process of passing between the pair of guide plates (33). The harmful gas contained in the bet is detected by the gas detection sensor (34, 35), and the detection signal detected by the gas detection sensor (34, 35) is transmitted to the outside through the control unit, thereby preventing the occurrence of a fire in the energy storage system. By quickly detecting harmful gases and at the same time recognizing the risks depending on the type of harmful gas in advance, preventive measures can be taken to prevent casualties when extinguishing a fire.

Figure 6 is a detailed view showing an opening and closing portion applied to a cooling device for an energy storage system having a fire detection passage according to an embodiment of the present invention.

The inclined plate 25, which is one side of the interior case 20 corresponding to the intake and exhaust space S3, includes an approximately square-shaped opening 25a formed through the exhaust space and the intake and exhaust space to communicate with each other, and the opening It includes a substantially square-shaped opening and closing plate (29b) that covers and blocks or opens by being spaced apart from each other, and is provided integrally with the upper part of the opening and closing plate, one end of a rotating shaft (29a) rotatably assembled to the upper edge of the opening, and A drive shaft may be connected to a drive motor 29 that opens and closes the opening and closing plate.

Accordingly, during normal cooling operation to maintain the indoor space of the container at a constant temperature, as shown in FIG. 6, the opening and closing plate 29b covers and seals the opening 25a, thereby separating the exhaust space and the intake and exhaust space. Since it can be maintained in the indoor space, the hot air in the indoor space is forcibly sucked in through the first inlet and cooled by heat exchange with the evaporator (1), and the cooled inner space forms a flow that is circulated and supplied to the indoor space of the container through the first outlet. I do it.

On the other hand, in the case of an emergency in which a fire occurs in the indoor space of the container, as shown in FIG. 6, when external power is applied to the driving motor according to the detection signal of the gas detection sensor, the opening and closing plate (29b) By rotating outward along with the rotation axis to completely or partially open the opening (25a), the exhaust space (S2) and the intake/exhaust space (S3) can be communicated with each other, thereby eliminating smoke as well as harmful gases generated in the indoor space. Can be exhausted to the outside through the second outlet 14 via the intake and exhaust space.

In this case, the smoke and harmful gases generated in the event of a fire in the interior space of the container are quickly discharged to the outside to minimize or prevent the multiple batteries and internal parts from being seriously contaminated or damaged by smoke, thereby extinguishing the fire. It is possible to restore the battery and internal components to their original state and reduce restoration costs, while firefighters entering the container can prevent casualties caused by harmful gases.

The present invention described above is not limited to the above-described embodiments and the accompanying drawings, and various substitutions, modifications, and changes are possible without departing from the technical spirit of the present invention as is known in the technical field to which the present invention pertains. It will be clear to those who have the knowledge of.

1: Evaporator 2: Compressor
3: Condenser
10: External case
11: first inlet 12: first outlet
13: second inlet 14: second outlet
20: Built-in case
21: first driving fan 22: second driving fan
23: intermediate bulkhead 24: box for control panel
30: detection unit
31: upper vertical plate 32: lower inclined bending plate
34: 1st gas detection sensor 35: 2nd feather, detection sensor

Claims (7)

In an energy storage system equipped with a plurality of batteries loaded in the indoor space of a container, an evaporator, compressor, and condenser in which refrigerant circulates in one direction is provided to cool the indoor space of the container to maintain a constant temperature,
A first inlet and a first outlet are provided on one side corresponding to the indoor space, a second inlet and a second outlet are provided on the other side corresponding to the outdoors, and a condenser is fixedly installed on the inner surface corresponding to the second outlet. External case;
Equipped with a first driving fan that forcibly sucks in air through the first intake port, and a second driving fan that forcefully sucks outside air through the second intake port, and an evaporator is fixedly installed inside corresponding to the first outlet, , an interior case coupled to the interior of the exterior case to form an intake and exhaust space where the condenser and the second driving fan are installed;
It is equipped with a pair of guide plates fixedly installed between the first driving fan and the evaporator, and is equipped with at least one gas detection sensor disposed between the pair of guide plates to prevent harmful substances contained in the gas staying between the pair of guide plates. It includes a detection unit that detects and detects gas,
The pair of guide plates includes a lower inclined bending plate that is spread outward at a certain angle from the bottom of the upper vertical plate so that the width of the outlet side through which the inside is discharged downward is wider than the width of the inlet side through which the inside enters, fire detection. Cooling device for energy storage system with flow path. delete In an energy storage system equipped with a plurality of batteries loaded in the indoor space of a container, an evaporator, compressor, and condenser in which refrigerant circulates in one direction is provided to cool the indoor space of the container to maintain a constant temperature,
A first inlet and a first outlet are provided on one side corresponding to the indoor space, a second inlet and a second outlet are provided on the other side corresponding to the outdoors, and a condenser is fixedly installed on the inner surface corresponding to the second outlet. External case;
Equipped with a first driving fan that forcibly sucks in air through the first intake port, and a second driving fan that forcefully sucks outside air through the second intake port, and an evaporator is fixedly installed inside corresponding to the first outlet, , an interior case coupled to the interior of the exterior case to form an intake and exhaust space where the condenser and the second driving fan are installed;
It is equipped with a pair of guide plates fixedly installed between the first driving fan and the evaporator, and is equipped with at least one gas detection sensor disposed between the pair of guide plates to prevent harmful substances contained in the gas staying between the pair of guide plates. It includes a detection unit that detects and detects gas,
The gas detection sensor is an energy storage device having a fire detection path, including a first gas detection sensor that selectively detects hydrogen-based fire gases and a second gas detection sensor that selectively detects carbon-based fire gases. Cooling device for the system. In an energy storage system equipped with a plurality of batteries loaded in the indoor space of a container, an evaporator, compressor, and condenser in which refrigerant circulates in one direction is provided to cool the indoor space of the container to maintain a constant temperature,
A first inlet and a first outlet are provided on one side corresponding to the indoor space, a second inlet and a second outlet are provided on the other side corresponding to the outdoors, and a condenser is fixedly installed on the inner surface corresponding to the second outlet. External case;
Equipped with a first driving fan that forcibly sucks in air through the first intake port, and a second driving fan that forcefully sucks outside air through the second intake port, and an evaporator is fixedly installed inside corresponding to the first outlet, , an interior case coupled to the interior of the exterior case to form an intake and exhaust space where the condenser and the second driving fan are installed;
It is equipped with a pair of guide plates fixedly installed between the first driving fan and the evaporator, and is equipped with at least one gas detection sensor disposed between the pair of guide plates to prevent harmful substances contained in the gas staying between the pair of guide plates. It includes a detection unit that detects and detects gas,
The interior case includes an upper chamber for fixing a first driving fan in an intake space corresponding to the first intake port, and a lower part for fixing both flanges extending from both sides of the evaporator in an exhaust space communicating with the intake space. A cooling device for an energy storage system having a fire detection passage, including an intermediate partition formed between the upper chamber and the lower chamber by forming a circular opening through a chamber and an upper surface corresponding to the first driving fan. According to paragraph 4,
One side of the interior case corresponding to the space between the exhaust space and the intake/exhaust space is fixed so that the cross-sectional area of the passage of the exhaust space can be reduced from the top to the bottom, and the cross-sectional area of the passage of the intake/exhaust space can be reduced from the bottom to the top. A cooling device for an energy storage system having a fire detection passage, including an angled inclined plate. In an energy storage system equipped with a plurality of batteries loaded in the indoor space of a container, an evaporator, compressor, and condenser in which refrigerant circulates in one direction is provided to cool the indoor space of the container to maintain a constant temperature,
A first inlet and a first outlet are provided on one side corresponding to the indoor space, a second inlet and a second outlet are provided on the other side corresponding to the outdoors, and a condenser is fixedly installed on the inner surface corresponding to the second outlet. External case;
Equipped with a first driving fan that forcibly sucks in air through the first intake port, and a second driving fan that forcefully sucks outside air through the second intake port, and an evaporator is fixedly installed inside corresponding to the first outlet, , an interior case coupled to the interior of the exterior case to form an intake and exhaust space where the condenser and the second driving fan are installed;
It is equipped with a pair of guide plates fixedly installed between the first driving fan and the evaporator, and is equipped with at least one gas detection sensor disposed between the pair of guide plates to prevent harmful substances contained in the gas staying between the pair of guide plates. It includes a detection unit that detects and detects gas,
It includes a dehumidifying unit that removes moisture contained in the vapor supplied downward to the evaporator,
The dehumidifying unit is an energy storage system having a fire detection passage, including a thermocouple frame including a thermocouple that generates heat when power is applied, and at least one humidity sensor that measures the humidity of the inside directly below the thermocouple through which the inside passes. cooling device. According to paragraph 4,
On one side of the interior case corresponding to the intake and exhaust space, an opening is formed through the exhaust space and the intake and exhaust space to communicate with each other, an opening and closing plate that covers and blocks the opening or opens it to be spaced apart, and is integrally provided at the top of the opening and closing plate. A cooling device for an energy storage system having a fire detection passage, including a drive motor in which one end of a pivot shaft rotatably assembled to the upper edge of the opening and a drive shaft are connected to open and close the opening and closing plate.

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