Water curtain and flame-retardant curtain synergistic smoke-blocking and heat-insulating device and fire prevention and control method

Abstract

The invention discloses a water curtain and flame-retardant curtain synergistic smoke and heat insulation device and a fire prevention and control method, the water curtain and flame-retardant curtain synergistic smoke and heat insulation device comprises a fireproof separation water curtain unit arranged along the junction of adjacent fireproof units, flame-retardant curtains symmetrically arranged on the two sides of the fireproof separation water curtain unit, and an induction unit; the induction unit comprises a controller, a heat-sensitive sensor, a smoke detector and a heat detector, the heat-sensitive sensor is arranged on the flame-retardant curtain, the smoke detector is further arranged on one side of the flame-retardant curtain, and the heat detector linked with the flame-retardant curtain is arranged in the fireproof unit; and the controller is used for controlling the working states of the fireproof separation water curtain unit and the flame-retardant curtain. Through intelligent linkage control of the detector, the flame-retardant curtain and the fireproof separation water curtain unit are started to operate in stages and scenes, the coping efficiency at the initial stage of a fire disaster is improved, smoke diffusion can be effectively controlled, spreading of the fire disaster in the underground garage can be blocked, and a safe space is created for personnel evacuation and fire disaster suppression to the maximum extent.

Description

Technical Field

[0001] The present invention relates to the technical field of fire protection engineering, and in particular to a water curtain and flame retardant curtain coordinated smoke and heat insulation device and a fire prevention and control method. Background Art

[0002] Under the premise of green and low-carbon development, the electric vehicle industry is booming. Electric vehicles are mostly powered by lithium batteries, which pose a higher fire risk than gasoline-powered vehicles. In 2024 alone, over 2,000 electric vehicle fires were publicly reported. Electric vehicles parked in garages are equivalent to storing several lithium battery energy storage units, making the charging process an even higher fire risk. Underground garages with decentralized charging facilities are semi-enclosed spaces. Vehicles often use combustible materials such as lithium batteries, gasoline, and rubber. In the event of a fire, the resulting high temperatures and toxic fumes are extremely difficult to dissipate promptly, spreading rapidly and causing significant damage to facilities and personnel underground. In places like battery swapping stations, the battery swapping process also carries the risk of fire caused by the loss of control of high-energy units. Therefore, to improve garage safety, it is essential to strengthen the fire protection of underground garages with decentralized charging facilities, particularly the installation of fire separations.

[0003] The "Technical Standard for Engineering of Distributed Charging Facilities for Electric Vehicles" stipulates that fire compartments within distributed charging facilities must be separated by independent fireproof units. Each fireproof unit must be separated by fireproof walls, fireproof roller shutters, or fireproof water curtains with a fire resistance rating of no less than 2.0 hours. For safe evacuation, using fireproof walls or fireproof roller shutters between fireproof units may result in a fireproof unit without stairs. Even if stairs are installed, the evacuation distance may exceed 60 meters, which does not meet the standard requirements.

[0004] Fire-proof water curtains are simple to activate, react quickly, and do not affect internal evacuation or the firefighting and rescue efforts of firefighters. Even in non-fire situations, they do not affect the flow of personnel. However, the low smoke-blocking efficiency of water curtains alone is a drawback. Flame-retardant roller shutters, as a type of smoke-proofing device, can prevent smoke from spreading downstream for a certain period of time, reducing the longitudinal inertia of smoke and effectively slowing the lateral spread of fire smoke. However, smoke barriers or roller shutters used alone are easily penetrated by high-temperature smoke. Therefore, a fire prevention and control method that combines water curtains and flame-retardant roller shutters to block smoke and provide heat insulation is proposed. Summary of the Invention

[0005] The purpose of the present invention is to provide a water curtain and flame retardant curtain collaborative smoke and heat insulation device and fire prevention and control method to solve the problems existing in the above-mentioned prior art, improve the response efficiency in the early stage of fire, effectively control the diffusion of smoke, block the spread of fire, and create a safe space for personnel evacuation and fire fighting to the maximum extent, thereby protecting the safety of other vehicles in the parking lot.

[0006] To achieve the above-mentioned objectives, the present invention provides the following solution: The present invention provides a water curtain and flame retardant curtain cooperative smoke and heat insulation device, comprising a fire separation water curtain unit arranged along the junction of adjacent fire protection units, flame retardant curtains symmetrically arranged on both sides of the fire separation water curtain unit, and a sensing unit; the sensing unit includes a controller, a thermistor, a smoke detector and a temperature detector, the thermistor is provided on the flame retardant curtain, the smoke detector is also provided on one side of the flame retardant curtain, and the temperature detector linked to the flame retardant curtain is provided in the fire protection unit; the controller is used to control the working status of the fire separation water curtain unit and the flame retardant curtain.

[0007] In one embodiment, the fire separation water curtain unit is connected to a water source via a pipeline, and a fire water pump and a solenoid valve are provided on the pipeline.

[0008] In one embodiment, the water source comes from a municipal water supply network or a fire water tank installed in a building.

[0009] In one embodiment, the fire separation water curtain unit also includes a main water supply pipe, a branch water supply pipe and a nozzle. The main water supply pipe connected to the water source is arranged along the top of the junction of adjacent fire protection units. Several branch water supply pipes are arranged at intervals on the main water supply pipe, and the nozzle is installed at the end of the branch water supply pipe.

[0010] In one embodiment, a thermal sensor is embedded in the side of the flame retardant curtain away from the fire separation water curtain, and a counterweight rod is installed at the bottom of the flame retardant curtain; the flame retardant curtain is a flame retardant roller curtain or a fireproof flame retardant curtain.

[0011] In one embodiment, guide mechanisms are installed at positions of the fire protection unit corresponding to the two sides of the flame retardant curtain, and the two side edges of the flame retardant curtain are respectively embedded in the guide mechanisms and move up and down along the guide mechanisms.

[0012] In one embodiment, a buckling mechanism is provided at the bottom end of the flame retardant curtain, a guide groove is preset on the ground at the bottom of the flame retardant curtain in the fire protection unit, and the buckling mechanism is sealed and connected to the guide groove.

[0013] In one embodiment, the fastening mechanism is a magnetic buckle.

[0014] The present invention also provides a fire prevention and control method, which is applied to the above-mentioned water curtain and flame retardant curtain coordinated smoke and heat insulation device, comprising the following steps:

[0015] Applied in underground garages equipped with decentralized charging facilities, when a fire occurs and the temperature detector sounds an alarm, the controller controls the flame-retardant curtain to immediately droop to 2.2 meters above the ground. The flame-retardant curtain's counterweight rod and guide mechanism ensure that the curtain remains drooped under smoke disturbances.

[0016] When the smoke detector detects that the smoke concentration exceeds the standard or the thermal sensor feedback flame retardant curtain is abnormal, the controller sends a linkage signal to the fire water pump and solenoid valve. After the signal is triggered, the sprinkler is fully opened to form a fire separation water curtain, providing dual protection of cooling and smoke isolation for adjacent fire protection units.

[0017] The present invention also provides a fire prevention and control method, which is applied to the above-mentioned water curtain and flame retardant curtain coordinated smoke and heat insulation device, comprising the following steps:

[0018] Applied in charging and swapping stations, after a fire occurs and the temperature detector alarms, the controller controls the flame retardant curtain to fall to the ground in its entirety, and the counterweight rod and guide mechanism guide the flame retardant curtain to fall vertically. The buckling mechanism at the bottom of the flame retardant curtain automatically docks with the guide groove and seals and locks;

[0019] The thermal sensor monitors temperature rise changes. When the temperature monitored by the thermal sensor rises to a set threshold, the nozzles on the outside of the flame retardant curtain are immediately activated to fully open to form a fire-proof separation water curtain, providing dual protection of cooling and smoke isolation for adjacent fire protection units.

[0020] Compared with the prior art, the present invention has achieved the following beneficial technical effects:

[0021] The water curtain and flame retardant curtain cooperative smoke and heat insulation device and fire prevention and control method in the present invention include a water curtain and flame retardant curtain cooperative smoke and heat insulation device, which includes a fire separation water curtain unit arranged along the junction of adjacent fire protection units, flame retardant curtains symmetrically arranged on both sides of the fire separation water curtain unit, and a sensing unit; the sensing unit includes a controller, a thermal sensor, a smoke detector and a temperature detector, a thermal sensor is provided on the flame retardant curtain, a smoke detector is also provided on one side of the flame retardant curtain, and a temperature detector linked to the flame retardant curtain is provided in the fire protection unit; the controller is used to control the working status of the fire separation water curtain unit and the flame retardant curtain. Through the intelligent linkage control of the detector, the flame retardant curtain and the fire separation water curtain unit are started in stages and scenes, thereby improving the response efficiency in the early stage of the fire. This method is economical and practical, has good feasibility, can effectively control the spread of smoke, block the spread of fire in the underground garage, create a safe space to the maximum extent for personnel evacuation and fire fighting, and protect the safety of other vehicles in the parking lot. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 This is a schematic diagram of the overall structure of the water curtain and flame retardant curtain collaborative smoke and heat insulation device;

[0024] Figure 2 Schematic diagram of thermal sensor embedded in roller shutter;

[0025] Figure 3 This is a schematic diagram of the coordinated working state of the water curtain and flame-retardant roller shutter when it is used in an underground garage with decentralized charging piles to meet the evacuation requirements of personnel;

[0026] Figure 4 This is a schematic diagram of the flame-retardant roller shutter working state when there is no need for personnel evacuation at a charging and swapping station;

[0027] Figure 5 Disaster response flow chart / linkage system framework diagram (garage scenario / battery swap station scenario);

[0028] The following items are included: 1. Water source; 2. Fire pump controller; 3. Water curtain branch pipe solenoid valve; 4. Sprinkler; 5. Main water supply pipe; 6. Branch water supply pipe; 7. Flame retardant curtain; 8. Heat detector; 9. Smoke detector; 10. Fire protection unit; 11. Parking space; 12. Thermal sensor; 13. Roller curtain counterweight; 14. Bottom buckle. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] The purpose of the present invention is to provide a water curtain and flame retardant curtain collaborative smoke and heat insulation device and fire prevention and control method to solve the problems existing in the above-mentioned prior art, improve the response efficiency in the early stage of fire, effectively control the diffusion of smoke, block the spread of fire, and create a safe space for personnel evacuation and fire fighting to the maximum extent, thereby protecting the safety of other vehicles in the parking lot.

[0031] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0032] like Figure 1-Figure 5As shown, the present invention provides a water curtain and flame retardant curtain cooperative smoke and heat insulation device, including a fire separation water curtain unit arranged along the junction of adjacent fire protection units 10, flame retardant curtains 7 symmetrically arranged on both sides of the fire separation water curtain unit, and a sensing unit; the sensing unit includes a controller, a thermal sensor 12, a smoke detector and a temperature detector 8, a smoke detector 9 is provided on one side of the flame retardant curtain 7, a smoke detector is also provided on one side of the flame retardant curtain 7, and a temperature detector 8 linked to the flame retardant curtain 7 is provided in the fire protection unit 10; the controller is used to control the working status of the fire separation water curtain unit and the flame retardant curtain 7.

[0033] In one embodiment, the fire-proof water curtain unit is connected to a water source 1 via a pipeline equipped with a fire pump and a solenoid valve. The water source 1 comes from a municipal water supply network or a fire water tank located within a building. The water sprayed from the nozzle 4 can be water or a mixture of water and additives. The presence of additives can enhance the smoke and heat insulation effects of the water curtain.

[0034] In one embodiment, the fire separation water curtain unit also includes a main water supply pipe 5, a branch water supply pipe 6 and a nozzle 4. The main water supply pipe 5 connected to the water source 1 is arranged along the top of the junction of adjacent fire protection units 10. Several branch water supply pipes 6 are symmetrically arranged on both sides of the main water supply pipe 5, and the nozzle 4 is installed at the end of the branch water supply pipe 6.

[0035] When the fire separation water curtain unit is working, the controller controls the fire water pump to work, and at the same time the solenoid valve is opened. The fire water pump pumps the water source 1 in the fire water pool to the main water supply pipe 5, and then the water in the main water supply pipe 5 is transported to the branch water supply pipe 6 and then sprayed out through the nozzle 4 to form a water curtain for fire extinguishing and isolation.

[0036] In one embodiment, a smoke detector 9 is installed on the side of the flame-retardant curtain 7 away from the fire-proof water curtain unit, and a counterweight is installed at the bottom of the flame-retardant curtain 7. The flame-retardant curtain 7 is made of a flame-retardant roller shutter or fire-resistant flame-retardant curtain. The flame-retardant curtain 7 has high flame retardancy and radiation resistance. A thermal sensor 12 is embedded in the back of the flame-retardant curtain 7, and a counterweight is installed at the bottom of the flame-retardant curtain 7 to improve stability against smoke disturbances.

[0037] In one embodiment, guide mechanisms are installed in the fire protection unit 10 at positions corresponding to the sides of the flame-retardant curtain 7. The guide mechanisms are guide grooves provided on the wall of the fire protection unit 10. The edges of the flame-retardant curtain 7 are respectively embedded in the guide grooves. The up and down movement of the flame-retardant curtain 7 in the guide grooves is equivalent to the rolling up and down operation of a rolling door in the prior art. The provision of the guide mechanism prevents the flame-retardant curtain 7 from drifting left and right during the falling process.

[0038] In one embodiment, the bottom end of the flame-retardant curtain 7 is provided with a snap-fit mechanism. A guide groove is pre-set in the floor of the fire protection unit 10 at the bottom of the flame-retardant curtain 7, and the snap-fit mechanism is sealed and connected to the guide groove. Preferably, a counterweight rod is provided along the entire length of the bottom of the flame-retardant curtain 7, and the snap-fit mechanism utilizes a magnetic buckle. The magnetic buckle at the bottom end of the flame-retardant curtain 7 precisely seals with the pre-set guide groove, enhancing fire containment.

[0039] In one embodiment, a heat detector 8 is installed within the fire protection unit 10 and can be linked to the flame-retardant curtain 7. When the heat radiation from the fire source exceeds a set threshold, the flame-retardant curtain 7 is preferentially triggered to descend, slowing the spread of smoke. If a smoke detector 9 located near the flame-retardant curtain 7 detects excessive smoke concentration, or if the thermal sensor 12 embedded in the flame-retardant curtain 7 generates abnormal feedback, a secondary trigger is triggered to activate the fire-proof water curtain, forming a double barrier.

[0040] The water curtain and flame-retardant curtain 7 of this invention work together to form a smoke and heat-insulating device, leveraging the respective advantages of each protective device and overcoming the limitations of a single method. A phased response mechanism balances safety and cost-effectiveness. The flame-retardant curtain 7's counterweight rod and self-lubricating guide mechanism ensure stable descent, while the snap-fit mechanism enhances sealing. While meeting fire separation requirements, this invention avoids excessive evacuation distances, improves smoke and heat insulation efficiency, and provides a safe space for escape and firefighting.

[0041] Example 1

[0042] Applied in underground garages equipped with decentralized charging facilities, this invention adopts a dual-stage linkage mechanism of "temperature-triggered roller shutters + smoke-triggered water curtains" to achieve early response and preserve evacuation routes.

[0043] Along the top of the junction of adjacent fire protection units 10 in the underground garage, a fire separation water curtain unit and flame retardant curtains 7 symmetrically arranged on both sides of the fire separation water curtain unit are set. The distance between the fire separation water curtain unit and the flame retardant curtain 7 can be flexibly set according to the size of the space.

[0044] The flame-retardant curtain 7 is linked to the heat detector 8 within the fire protection unit 10. When a fire breaks out in parking space 11 and the heat detector 8 sounds an alarm, the curtain 7 immediately descends to 2.2 meters above the ground. A counterweight and guide mechanism ensure that the curtain 7 remains stable despite smoke disturbances.

[0045] When the smoke detector 9 arranged near the flame retardant curtain 7 detects that the smoke concentration exceeds the standard, the system sends a linkage signal to the fire pump controller 2 and the water curtain branch pipe solenoid valve 3. Within 20 seconds after the signal is triggered, the sprinkler 4 is fully opened to form a fire separation water curtain, providing dual protection of cooling and smoke isolation for the adjacent fire protection unit 10.

[0046] Example 2

[0047] Applied in charging and swapping stations, which are mostly semi-automated and rarely manned, the integrity of fire separation is prioritized:

[0048] After a fire occurs, the heat detector 8 is triggered and the rolling curtain falls to the ground in full width. The counterweight rod and the guide mechanism guide the rolling curtain to fall vertically. The bottom end of the flame retardant curtain 7 automatically docks with the guide groove and is sealed and locked by the magnetic buckle.

[0049] A thermal sensor 12 is embedded in the back of the flame retardant curtain 7 to monitor temperature rise changes. Once the temperature rises to a set threshold (such as 200°C), that is, the structure of the flame retardant curtain 7 is about to be unable to withstand the impact of high-temperature smoke and is destroyed, the nozzles 4 on the outside of the flame retardant curtain 7 are immediately activated and fully opened to form a fire-proof separation water curtain, providing dual protection of cooling and smoke isolation for the adjacent fire protection units 10.

[0050] The fire prevention and control method of the water curtain and flame retardant curtain coordinated smoke and heat insulation device in the present invention has the following characteristics:

[0051] 1. Water curtain and flame retardant roller curtain work together to protect and make up for the limitations of single measures

[0052] The combination of flame-retardant curtains 7 and fire-separating water curtain units creates a "double protection" approach. This system, with clear division of labor and complementary advantages at different fire development stages, addresses the issues of low smoke barrier efficiency and smoke penetration of vertical smoke barriers caused by traditional water curtains. It is particularly suitable for locations with high-temperature smoke diffusion risks, such as underground garages and battery swap stations.

[0053] 2. Have a phased response mechanism that takes into account both safety and economy

[0054] The present invention adopts a phased response control strategy of "temperature sensing and smoke sensing" dual detection. When the temperature detector 8 detects local heat abnormality, the flame retardant curtain 7 will be partially or fully lowered to achieve preliminary isolation without affecting the evacuation of personnel; only when the smoke diffuses to the boundary of the fire protection unit 10 and the concentration exceeds the standard or the smoke barrier curtain 7 fails, the fire separation water curtain unit will be activated, ensuring the hierarchical implementation of protective measures, avoiding waste of resources, and taking into account both fire response efficiency and project operation economy.

[0055] 3. Optimize the flame-retardant roller shutter structure design to improve stability and sealing performance

[0056] The flame-retardant curtain 7 adopts a counterweight rod + self-lubricating guide mechanism structure to improve the stability of the flame-retardant curtain 7 during the falling process and effectively resist the swing or deviation caused by fire smoke disturbance; a magnetic buckle is provided at the bottom, which can be firmly combined with the preset guide groove on the ground after the flame-retardant curtain 7 is completely dropped to form a closed boundary.

[0057] The water curtain and smoke-barrier roller shutter cooperate with the smoke-barrier and heat-insulating device and fire prevention and control method of the present invention, through intelligent linkage control of detectors, start each device in stages and scenarios, thereby improving the response efficiency in the early stage of fire. This method is economical and practical, has good feasibility, can effectively control the spread of smoke, block the spread of fire in the underground garage, create a safe space for personnel evacuation and fire fighting to the maximum extent, and protect the safety of other vehicles in the parking lot.

[0058] It should be noted that it is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, from all perspectives, the embodiments should be regarded as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the foregoing description. It is intended that all changes that fall within the meaning and range of equivalents of the claims be included in the present invention, and any reference signs in the claims should not be construed as limiting the claims to which they relate.

[0059] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only intended to help understand the method and core concept of the present invention. At the same time, those skilled in the art will find that the specific implementation methods and application scopes may vary based on the concept of the present invention. In summary, the contents of this specification should not be construed as limiting the present invention.

Claims

1. A smoke and heat insulation device that cooperates with a water curtain and a flame retardant curtain, characterized by: It includes a fire separation water curtain unit arranged along the junction of adjacent fire protection units, flame retardant curtains symmetrically arranged on both sides of the fire separation water curtain unit, and a sensing unit; the sensing unit includes a controller, a thermal sensor, a smoke detector and a temperature detector, the thermal sensor is arranged on the flame retardant curtain, the smoke detector is also arranged on one side of the flame retardant curtain, and the temperature detector linked to the flame retardant curtain is arranged in the fire protection unit; the controller is used to control the working status of the fire separation water curtain unit and the flame retardant curtain.

2. The water curtain and flame retardant curtain collaborative smoke and heat insulation device according to claim 1, characterized in that: The fire separation water curtain unit is connected to a water source through a pipeline, and a fire water pump and a solenoid valve are provided on the pipeline.

3. The water curtain and flame retardant curtain collaborative smoke and heat insulation device according to claim 2, characterized in that: The water source comes from the municipal water supply network or a fire water pool arranged in a building.

4. The water curtain and flame retardant curtain collaborative smoke and heat insulation device according to claim 1, characterized in that: The fire separation water curtain unit also includes a main water supply pipe, a branch water supply pipe and a nozzle. The main water supply pipe connected to the water source is arranged along the top of the junction of adjacent fire protection units. Several branch water supply pipes are arranged at intervals on the main water supply pipe, and the nozzle is installed at the end of the branch water supply pipe.

5. The water curtain and flame retardant curtain collaborative smoke and heat insulation device according to claim 1, characterized in that: A thermal sensor is embedded in the side of the flame retardant curtain away from the fire separation water curtain, and a counterweight rod is installed at the bottom of the flame retardant curtain; the flame retardant curtain adopts a flame retardant roller curtain or a fireproof flame retardant curtain.

6. The water curtain and flame retardant curtain collaborative smoke and heat insulation device according to claim 1, characterized in that: Guide mechanisms are installed at positions in the fire protection unit corresponding to the two sides of the flame retardant curtain. The two side edges of the flame retardant curtain are respectively embedded in the guide mechanisms and move up and down along the guide mechanisms.

7. The water curtain and flame retardant curtain collaborative smoke and heat insulation device according to claim 1, characterized in that: The bottom end of the flame retardant curtain is provided with a buckling mechanism, and a guide groove is preset on the ground at the bottom of the flame retardant curtain in the fire protection unit, and the buckling mechanism is sealed and connected with the guide groove.

8. The water curtain and flame retardant curtain collaborative smoke and heat insulation device according to claim 7, characterized in that: The buckling mechanism adopts a magnetic buckle.

9. A fire prevention and control method, applied to the water curtain and flame retardant curtain coordinated smoke and heat insulation device according to any one of claims 1 to 8, characterized in that: The following steps are involved: Applied in underground garages equipped with decentralized charging facilities, when a fire occurs and the temperature detector sounds an alarm, the controller controls the flame-retardant curtain to immediately droop to 2.2 meters above the ground. The flame-retardant curtain's counterweight rod and guide mechanism ensure that the curtain remains drooped under smoke disturbances. When the smoke detector detects that the smoke concentration exceeds the standard or the thermal sensor feedback flame retardant curtain is abnormal, the controller sends a linkage signal to the fire water pump and solenoid valve. After the signal is triggered, the sprinkler is fully opened to form a fire separation water curtain, providing dual protection of cooling and smoke isolation for adjacent fire protection units.

10. A fire prevention and control method, applied to the water curtain and flame retardant curtain coordinated smoke and heat insulation device according to any one of claims 1 to 8, characterized in that: The following steps are involved: Applied in charging and swapping stations, after a fire occurs and the temperature detector alarms, the controller controls the flame retardant curtain to fall to the ground in its entirety, and the counterweight rod and guide mechanism guide the flame retardant curtain to fall vertically. The buckling mechanism at the bottom of the flame retardant curtain automatically docks with the guide groove and seals and locks; The thermal sensor monitors temperature rise changes. When the temperature monitored by the thermal sensor rises to a set threshold, the nozzles on the outside of the flame retardant curtain are immediately activated to fully open to form a fire-proof separation water curtain, providing dual protection of cooling and smoke isolation for adjacent fire protection units.

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