Gas-water curtain partition type smoke control system

Abstract

The invention relates to a gas-water curtain partition type smoke control system, and belongs to the field of tunnel fire prevention and control, the gas-water curtain partition type smoke control system comprises a tunnel, smoke control partitions, a tunnel fire extinguishing system, a gas curtain generation system, a water curtain generation system and a fire detection alarm, the tunnel is divided into a plurality of smoke control partitions by the gas curtain generation system and the water curtain generation system, and the gas curtain generation system further comprises an ejector. An inlet and an outlet of the ejector are connected with different smoke control subareas respectively, and air in the smoke control subareas where no fire occurs is induced to enter the smoke control subareas where the fire occurs to form an air curtain. Through the air pump, the air pressure tank, the automatic drainer, the safety relief valve and other parts, compressed air is provided and exhausted through the air curtain air opening to form an air curtain, in order to reduce the air supply amount of the air compression system, an ejector mode is adopted, one inlet of the ejector is connected to the smoke control subarea far away from the outlet, and the other inlet of the ejector is connected to the smoke control subarea far away from the outlet. And the cost and the complexity of the system are reduced.

Description

Technical Field

[0001] The present application belongs to the field of safety science and technology and tunnel disaster prevention and mitigation technology, and specifically relates to an air-water curtain flexible partition type tunnel smoke control system. Background Art

[0002] With the breakthrough in the manufacturing of shield machines, my country's ultra-long underwater transportation tunnels have entered a construction boom, and strategic ultra-long submarine tunnels with a length of more than 20 km are planned in Bohai Bay, Qiongzhou Strait, and Taiwan Strait. Fire is the biggest threat to the safety of underwater transportation tunnel operations. 80% of casualties in accidents are caused by smoke control failures. Therefore, smoke control technology has become the key to ensuring the safety of tunnel operations.

[0003] The main idea of ​​existing tunnel smoke control technology is still around the word "exhaust", that is, to transport smoke from the fire scene to the outside. The relevant research and engineering applications at home and abroad are mainly divided into two categories: longitudinal smoke exhaust, which is a displacement ventilation method, forming a longitudinal airflow in the tunnel, blowing all the fire smoke downstream, which is suitable for one-way traffic tunnels with smooth road conditions; focused smoke exhaust, adopting the principle of nearest exhaust, setting up a special smoke exhaust duct in the tunnel and evenly arranging the smoke exhaust ports, only opening the smoke exhaust ports near the fire point, and exhausting the smoke nearby through the smoke exhaust duct, which is suitable for tunnels with long lengths and frequent blockages. For ultra-long underwater traffic tunnels, the above two types of technologies have certain limitations: when longitudinal smoke exhaust is adopted, once the tunnel is blocked by traffic, the fire will spread longitudinally, causing greater casualties; when focused smoke exhaust is adopted, the civil construction cost of the civil smoke duct is high and it is easy to leak air, which is prone to long-distance smoke leakage and large smoke leakage, resulting in the failure of the smoke exhaust system. In addition, in the early stage of the fire, the smoke is easily affected by the residual piston wind in the tunnel, and the smoke is easy to spread downstream of the fire source.

[0004] Whether it is the vertical smoke exhaust technology or the key smoke exhaust technology, there is a process of transporting smoke out of the fire scene and transporting it to the outside, which cannot fundamentally solve the problems of fast smoke spread, great harm of residual smoke in the fire scene, difficult control of super-long smoke exhaust, and easy failure of smoke exhaust. Therefore, a new smoke control system should be further proposed for super-long underwater tunnels to solve the above problems. Summary of the invention

[0005] In view of the above defects or improvements required in the prior art solutions, the present invention provides an air-water curtain smoke-isolating tunnel smoke control system, which is a new tunnel smoke control system that can temporarily divide the tunnel into multiple smoke control sections and process fire smoke on-site without affecting normal driving functions.

[0006] The air-water curtain partition type smoke control system of the present invention includes a tunnel, smoke control zones, a tunnel fire extinguishing system, an air curtain generating system, a water curtain generating system, and a fire detection alarm. The tunnel is divided into multiple smoke control zones by the air curtain generating system and the water curtain generating system. The air curtain generating system and the water curtain generating system are alternately arranged at the junctions of different smoke control zones in the tunnel, and the smoke is controlled within the smoke control zones through the air curtain generating system and the water curtain generating system, so as to carry out the smoke exhaust operation.

[0007] The pipeline network of the air curtain generating system of the present invention mainly consists of an air delivery pipeline and an air curtain generating end. The air delivery pipeline is arranged longitudinally along the tunnel to provide air source for the air curtain generating end, and the air curtain generating end can spray to form an air curtain covering the cross-section of the tunnel. The air curtain adopts a slit-type air outlet, and the cross-section of the air outlet adopts a wedge-shaped design to achieve uniform air supply. The pipeline network of the water curtain generating system mainly consists of a water supply pipeline and a water curtain generating end, and the water curtain generating end can spray to form a water curtain covering the cross-section of the tunnel.

[0008] The air curtain generating end and the water curtain generating end are arranged in parallel at intervals at the boundary of the smoke control zones, and the layout scheme of the air curtain generating end and the water curtain generating end can be flexibly adjusted according to the specific project.

[0009] Furthermore, the air curtain generating system consists of an air pump, a pressure tank, an automatic drainer, a safety relief valve, a selector valve, a pneumatic check valve, an air delivery pipeline, an air curtain air outlet, and an ejector. The inlet of the air pump is connected to the outside, the outlet of the air pump is connected to the inlet of the pressure tank, the outlet of the pressure tank is connected to the inlet of the ejector through the air delivery pipeline. The ejector is a three-way structure, the other inlet of the ejector is directly connected to the smoke control zone through an ejector pipe, the outlet of the ejector is connected to the inlet of the air curtain air outlet through the air delivery pipeline, and the air curtain air outlet sprays out gas to form an air curtain.

[0010] An automatic drainer is arranged on the pipeline between the air pump and the pressure tank. The air pump compresses and dehumidifies the air in the normal temperature environment and stores it in the pressure tank, and the condensed water generated by compression and dehumidification is discharged through the automatic drainer.

[0011] Furthermore, the automatic drainer adopts a water-sealed elbow structure. Generally, the automatic drainer remains closed due to the water-sealed structure. When the water volume in the automatic drainer reaches a certain value, part of the condensed water is automatically discharged due to the action of water pressure and internal air pressure, and the water-sealed structure realizes the sealing effect to prevent air leakage. In addition, it can also be designed that components such as a liquid level gauge and an automatic drain valve are arranged on the automatic drainer. The liquid level value in the automatic drainer is detected by the liquid level gauge to judge whether the liquid level value reaches the lowest drainage liquid level. When the liquid level value in the automatic drainer reaches the lowest drainage liquid level, the water is discharged by opening the automatic drain valve, and when the liquid level value in the automatic drainer reaches the liquid level for stopping drainage, the automatic drain valve is closed.

[0012] A safety relief valve is also provided on the pressure vessel. When the pressure in the pressure vessel exceeds the set pressure of the relief valve, it automatically opens to relieve pressure to protect the safety of the equipment. The set pressure is greater than the working pressure of the pressure vessel.

[0013] An air control check valve is provided on the gas transmission pipeline at one inlet of the ejector. The pressure vessel is connected to the ejector through the air control check valve. The other inlet of the ejector is connected to the smoke control zone. The outlet of the ejector is connected to the gas transmission pipeline, which is used to spray air into the smoke control zone to form an air curtain. A selection valve is provided on the gas transmission pipeline at the outlet of the ejector. The air control check valve adopts a normally closed valve structure. When a fire is detected, the selection valve corresponding to the smoke control zone where the fire occurs is controlled to open, and the air control check valve opens. The gas in the pressure vessel flows into the ejector through the gas transmission pipeline. Since the ejector adopts a confluent tee structure, one side inlet is connected to compressed air, and one side inlet is connected to the smoke control zone through an ejector pipe. Under the induction of high-speed compressed air, a large amount of air in the tunnel is introduced. After the two parts of the airflows are mixed, they are sent to the air curtain air outlet. To prevent the ejector from introducing flue gas from the tunnel side, the smoke control zone where the inlet of the ejector is located needs to be set away from the smoke control zone responsible for this ejector. Since the air volume of the air curtain air outlet comes from the air compression system and the air on the tunnel side under the action of the ejector, the air supply volume of the air compression system can be reduced.

[0014] An air compression system consists of an air pump, a pressure vessel, an automatic drainer and a safety relief valve. One air curtain air outlet is provided on each side of each smoke control zone. One air compression system can correspond to several smoke control zones. The number of smoke control zones corresponding to one air compression system can be determined according to parameters such as the power of the air pump and the width of the tunnel. Generally, each air compression system can correspond to no more than [number] smoke control zones.

[0015] To improve the reliability of air supply, the air supply sides of multiple air compression systems can be connected through a header pipe to be used as backups for each other. When the air compression system corresponding to the smoke control zone does not respond, other air compression systems are turned on.

[0016] Furthermore, the gas transmission pipeline is made of hot-dip galvanized seamless steel pipe.

[0017] The fire detection alarm includes an infrared photosensitive temperature detector, an ionization smoke sensor and a fire location mechanism. Among them, the infrared photosensitive temperature detector and the ionization smoke sensor are installed on both sides of the tunnel at equal intervals along the longitudinal direction of the tunnel. The infrared photosensitive temperature detector is used to monitor the temperature of the tunnel in real time and give an alarm when the temperature in the tunnel is abnormal. The ionization smoke sensor is used to monitor the smoke concentration in the tunnel in real time. The ionization smoke sensor is installed at equal intervals along the longitudinal direction of the tunnel. The fire location mechanism is used to accurately locate the fire occurrence location after system analysis and processing according to the detection structures of different infrared photosensitive temperature detectors and ionization smoke sensors.

[0018] Furthermore, an FAS system for fire alarm and fire control is also provided in the tunnel. The FAS system is connected to the fire detection alarm, used to receive the alarm signal and the location of the fire source from the detection alarm, determine the smoke control zone where the fire source is located, open the selector valves on both sides of the said smoke control zone, and interlock to open the corresponding air compression system, while the selector valves in the remaining non - burning areas remain closed.

[0019] When the fire detection alarm detects a fire, it transmits the fire alarm information to the FAS system. The FAS system determines the smoke control zone where the fire source is located, determines the corresponding air compression system and the corresponding selector valve in the said smoke control zone, and sequentially opens the corresponding air pump, pneumatic check valve and selector valve. Compressed gas is ejected from the air curtain air outlet to form an air curtain. The selector valves corresponding to other smoke control zones remain closed. At the same time, the water curtain generating system on both sides of the said smoke control zone is opened, and the tunnel fire extinguishing system is activated to extinguish the fire source.

[0020] In order to improve the smoke control effect of a fire, the present invention divides the tunnel into multiple smoke control zones, and isolates different smoke control zones through air curtains and water curtains, so that the smoke generated by the fire is isolated inside the smoke control zone, thereby reducing the harm to other people upstream and downstream of the tunnel. By adopting the alternating arrangement of air curtains and water curtains, it takes into account both the isolation of smoke and the functions of cooling the smoke and removing harmful components. Compared with the smoke control methods that only use air curtains or water curtains alone, the smoke control effect of the present invention is better.

[0021] The present invention also uses components such as air pumps, pressure vessels, automatic drainers, safety relief valves, etc. to provide compressed air and discharge it through the air curtain air outlet to form an air curtain. In order to reduce the air supply volume of the air compression system, the ejector method is adopted. One of the inlets of the ejector is connected to the smoke control zone far from the outlet, reducing the cost and complexity of the system. At the same time, the present invention also sets up a standby air compression system to prevent system failure. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 Schematic diagram of the air - water curtain smoke isolation tunnel smoke control system shown in the embodiment of the present invention;

[0023] Figure 2 Cross - sectional view of the air curtain shown in the embodiment of the present invention;

[0024] Figure 3 Cross - sectional view of the water curtain shown in the embodiment of the present invention;

[0025] Figure 4 Schematic diagram of the air curtain generating system shown in the embodiment of the present invention;

[0026] Figure 5 Schematic diagram of the air compression system shown in the embodiment of the present invention.

[0027] Description of the reference numerals: 1 - tunnel, 2 - smoke control zone, 3 - tunnel fire extinguishing system, 4 - air curtain generating system, 5 - water curtain generating system, 6 - fire detection and alarm device, 7 - air curtain, 8 - water curtain, 401 - gas transmission pipeline, 402 - air curtain generating terminal, 403 - air pump, 404 - air pressure tank, 405 - automatic drain, 406 - safety relief valve, 407 - selector valve, 408 - pneumatic check valve, 409 - ejector. Detailed implementation manners

[0028] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention belong to the scope of the present invention.

[0029] In addition, the described features, structures or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of the embodiments of the present application. However, those skilled in the art will realize that the technical solutions of the present application may be practiced without one or more of the specific details, or other methods, components, devices, steps, etc. may be used. In other cases, well-known methods, devices, implementations or operations are not shown or described in detail to avoid obscuring aspects of the present application.

[0030] Figure 1 It is an air-water curtain partition type smoke control system of the present invention, including a tunnel 1, a smoke control zone 2, a tunnel fire extinguishing system 3, an air curtain generating system 4, a water curtain generating system 5 and a fire detection and alarm device 6. The tunnel 1 is divided into multiple smoke control zones 2 by the air curtain generating system 4 and the water curtain generating system 5. The air curtain generating system 4 and the water curtain generating system 5 are alternately arranged at the junctions of different smoke control zones 2 in the tunnel 1, and the smoke is controlled inside the smoke control zone 2 through the air curtain generating system and the water curtain generating system, so as to perform the smoke exhaust operation.

[0031] Figure 2 It is a cross-sectional view of the air curtain. The pipeline network of the air curtain generating system 4 is mainly composed of a gas transmission pipeline 401 and an air curtain generating terminal 402. The gas transmission pipeline 401 is arranged longitudinally along the tunnel 1 to provide a gas source for the air curtain generating terminal 402. The air curtain generating terminal 402 can jet to form an air curtain 7 covering the cross-section of the tunnel 1. The gas transmission pipeline is composed of a main pipeline arranged longitudinally along the tunnel and branch pipelines separately connected to each air curtain generating terminal. A control valve is arranged at the inlet connection of each air curtain generating terminal, and the controller adjusts the opening of the control valve to regulate the opening of the air curtain generating system and the air supply volume of the air curtain generating system. The air curtain adopts a slit-type air outlet, and the cross-section of the air outlet adopts a wedge-shaped design to achieve uniform air supply.

[0032] Figure 3 It is a cross-sectional view of the water curtain generating system. The pipe network of the water curtain generating system 5 mainly consists of a water supply pipeline 501 and water curtain generating terminals 502. The water curtain generating terminals 502 can spray to form a water curtain 8 covering the cross-section of the tunnel 1. The water supply pipeline 501 is composed of a main water supply pipeline longitudinally distributed along the tunnel and branch pipelines connected to each water curtain generating terminal 502. The water curtain generating terminals can be arranged at the top of the tunnel. By applying pressure to the main water supply pipeline, water is ejected from the water curtain generating terminals. Due to the water pressure and gravity, the ejected water flow can cover the cross-section of the tunnel 1.

[0033] At the boundary of the smoke control zone 2, the air curtain generating terminals 402 and the water curtain generating terminals 502 are arranged in parallel at intervals. The layout scheme of the air curtain generating terminals 402 and the water curtain generating terminals 502 can be flexibly adjusted according to the specific project.

[0034] Preferably, a plurality of air curtain generating terminals 402 and water curtain generating terminals 502 are arranged alternately at the boundary. The air curtain generating terminals can better isolate the flow of smoke to the upstream and downstream, forming a relatively sealed space, while the water curtain generating terminals can reduce the temperature of the smoke and adsorb particulate matter, CO2, SO2 and other harmful substances in the smoke. By alternately arranging the air curtain generating terminals 402 and the water curtain generating terminals 502, compared with a single air curtain or water curtain, the isolation and cooling effects of the present invention are better, which is convenient for further treatment of the fire and avoids the harm of the fire to the personnel in the tunnel.

[0035] Figure 4 - 5 It is a schematic diagram of the air curtain pipeline system. The air curtain generating system 4 consists of an air pump 403, a pressure tank 404, an automatic drain 405, a safety relief valve 406, a selector valve 407, an air-controlled check valve 408, an air transmission pipeline, an air curtain air outlet, and an ejector 409. The inlet of the air pump 403 is connected to the outside, the outlet of the air pump 403 is connected to the inlet of the pressure tank 404, the outlet of the pressure tank 404 is connected to the inlet of the ejector 409 through the air transmission pipeline. The ejector 409 is a tee structure. The other inlet of the ejector 409 is directly connected to the smoke control zone through an ejector pipe. The outlet of the ejector 409 is connected to the inlet of the air curtain air outlet through the air transmission pipeline. The air curtain air outlet ejects gas to form an air curtain.

[0036] An automatic drain 405 is arranged on the pipeline between the air pump 403 and the pressure tank 404. The air pump 403 compresses and dehumidifies the air in the normal temperature environment and stores it in the pressure tank 404. The condensed water generated by compression and dehumidification is discharged through the automatic drain 405.

[0037] In one embodiment, the automatic drain 405 adopts a water-sealed elbow structure. Generally, the automatic drain 405 remains closed due to the water-sealed structure. When the water volume in the automatic drain 405 reaches a certain value, part of the condensed water is automatically discharged due to the action of water pressure and internal air pressure, and the water-sealed structure achieves a sealing effect to prevent air leakage. In another embodiment, components such as a liquid level gauge and an automatic drain valve are provided on the automatic drain 405. The liquid level value inside the automatic drain 405 is detected by the liquid level gauge to determine whether the liquid level value reaches the minimum drainage liquid level. When the liquid level value inside the automatic drain 405 reaches the minimum drainage liquid level, the water is discharged by opening the automatic drain valve. When the liquid level value inside the automatic drain 405 reaches the liquid level for stopping drainage, the automatic drain valve is closed.

[0038] A safety relief valve 406 is also provided on the pressure vessel 404. When the pressure inside the pressure vessel 404 exceeds the set pressure of the relief valve, it automatically opens for pressure relief to protect the safety of the equipment. The set pressure is greater than the working pressure of the pressure vessel 404.

[0039] An air control check valve 408 is provided on the gas transmission pipeline at one inlet of the ejector 409. The pressure vessel 404 is connected to the ejector 409 through the air control check valve 408. The other inlet of the ejector 409 is connected to the smoke control zone. The outlet of the ejector 409 is connected to the gas transmission pipeline, which is used to inject air into the smoke control zone to form an air curtain. A selection valve 407 is provided on the gas transmission pipeline at the outlet of the ejector 409. The air control check valve 408 adopts a normally closed valve structure. When a fire is detected, the selection valve 407 corresponding to the smoke control zone where the fire occurs is controlled to open, and the air control check valve 408 opens. The gas inside the pressure vessel 404 flows into the ejector 409 through the gas transmission pipeline. Since the ejector 409 adopts a confluent tee structure, one inlet is connected to compressed air, and one inlet is connected to the smoke control zone through an ejector pipe. Under the induction of high-speed compressed air, a large amount of air in the tunnel is introduced. After the two parts of the airflows are mixed, they are sent to the air curtain air outlet. To avoid the ejector 409 introducing smoke from the tunnel side, the smoke control zone where the inlet of the ejector 409 is located needs to be set away from the smoke control zone responsible for this ejector 409. Since the air volume of the air curtain air outlet comes from the air compression system and the tunnel-side air under the action of the ejector 409, the air supply volume of the air compression system can be reduced.

[0040] An air compression system is composed of an air pump 403, a pressure vessel 404, an automatic drain 405, and a safety relief valve 406. An air curtain air outlet is provided on each side of each smoke control zone. One air compression system can correspond to several smoke control zones. The number of smoke control zones corresponding to one air compression system can be determined according to parameters such as the power of the air pump 403 and the width of the tunnel. Generally, each air compression system can correspond to no more than 10 smoke control zones.

[0041] In order to improve the reliability of air supply, the air supply sides of multiple air compression systems can be connected through air collecting pipes to serve as backup for each other. When the air compression system corresponding to the smoke control zone does not respond, other air compression systems are turned on.

[0042] Furthermore, the gas transmission pipeline adopts hot-dip galvanized seamless steel pipe.

[0043] The fire detection alarm 6 includes an infrared photosensitive thermometer, an ion type smoke sensor and a fire positioning mechanism, wherein the infrared photosensitive thermometer and the ion type smoke sensor are installed at equal intervals on both sides of the tunnel along the longitudinal direction of the tunnel. The infrared photosensitive thermometer is used to monitor the tunnel temperature in real time and alarm when the temperature in the tunnel is abnormal. The ion type smoke sensor is used to monitor the smoke concentration in the tunnel in real time. The ion type smoke sensor is installed at equal intervals along the longitudinal direction of the tunnel. The fire positioning mechanism is used to accurately locate the location of the fire after system analysis and processing based on the detection structures of different infrared photosensitive thermometers and ion type smoke sensors.

[0044] Furthermore, a FAS system for fire alarm and fire control is also provided in the tunnel. The FAS system is connected to the fire detection alarm 6, and is used to receive the alarm signal and the fire source location of the detection alarm 6, and determine the smoke control zone where the fire source is located according to the fire source location, and open the selection valves 407 on both sides of the above-mentioned smoke control zone, and interlock and open the corresponding air compression system, while the selection valves 407 in other non-fire areas remain closed.

[0045] When the fire detection alarm 6 detects a fire, the fire alarm information is transmitted to the FAS system, and the FAS system determines the smoke control zone where the fire source is located, and determines the air compression system and the corresponding selection valve 407 corresponding to the smoke control zone, and opens the corresponding air pump 403, air-controlled one-way valve 408 and selection valve 407 in sequence, and compressed gas is ejected from the air curtain vent to form an air curtain. The selection valves 407 corresponding to other smoke control zones remain closed, and at the same time, the water curtain generation systems on both sides of the smoke control zone are opened, and the tunnel fire extinguishing system 3 is opened to extinguish the fire source.

[0046] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may also be combined, the steps may be implemented in any order, and there are many other changes in different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity. Although the present invention has been described in detail with reference to the above embodiments, a person of ordinary skill in the art should understand that the technical solutions described in the above embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An air-water curtain partition type smoke control system, characterized in that: The invention comprises a tunnel (1), a smoke control partition (2), a tunnel fire extinguishing system (3), an air curtain generating system (4), a water curtain generating system (5), and a fire detection alarm (6). The tunnel (1) is divided into a plurality of smoke control partitions (2) by the air curtain generating system (4) and the water curtain generating system (5). The air curtain generating system further comprises an ejector (409). The inlet and outlet of the ejector (409) are respectively connected to different smoke control partitions, so as to induce the air in the smoke control partition where no fire occurs to enter the smoke control partition where the fire occurs to form an air curtain (7).

2. The air-water curtain partition type smoke control system according to claim 1 is characterized in that: Air curtain generating ends (402) and water curtain generating ends (502) are alternately arranged at the junctions of different smoke control zones (2).

3. The air-water curtain partition type smoke control system according to claim 1 is characterized in that: The air curtain pipeline system also includes an air pump (403), an air pressure tank (404), a safety pressure relief valve (406), a selection valve (407), an air-controlled one-way valve (408), an air transmission pipeline, and an air curtain vent.

4. The air-water curtain partition type smoke control system according to claim 3 is characterized in that: The inlet of the air pump (403) is connected to the outside, the outlet of the air pump (403) is connected to the inlet of the air pressure tank (404), and the outlet of the air pressure tank (404) is connected to the inlet of the ejector (409) through an air pipeline.

5. The air-water curtain partition type smoke control system according to claim 4 is characterized in that: The ejector (409) adopts a converging three-way structure, with one inlet connected to compressed air and the other inlet connected to the smoke control partition through the ejector (409). Under the induction of high-speed compressed air, a large amount of air in the tunnel is introduced, and the two parts of air flow are mixed and then sent to the air curtain outlet; the smoke control partition where the ejector (409) inlet is located needs to be set away from the smoke control partition that the ejector (409) is responsible for.

6. The air-water curtain partition type smoke control system according to claim 4 is characterized in that: An automatic drainer (405) is provided on the pipeline between the air pump (403) and the air pressure tank. The air pump (403) compresses and dehumidifies the air in the normal temperature environment and stores it in the air pressure tank (404). Condensed water generated by the compression and dehumidification is discharged through the automatic drainer (405).

7. The air-water curtain partition type smoke control system according to claim 6, characterized in that: The automatic drainer (405) adopts a water seal structure or the automatic drainer (405) includes a liquid level meter and an automatic drain valve. The liquid level value in the automatic drainer is detected by the liquid level meter to determine whether the liquid level value reaches the minimum drainage liquid level. When the liquid level value in the automatic drainer (405) reaches the minimum drainage liquid level, the automatic drain valve is opened to drain the water. When the liquid level value in the automatic drainer (405) reaches the liquid level for stopping drainage, the automatic drain valve is closed.

8. The air-water curtain partition type smoke control system according to claim 3 is characterized in that: The air pressure tank (404) is also provided with a safety pressure relief valve (406), which automatically opens to release pressure when the pressure in the air pressure tank (404) exceeds the set pressure of the safety pressure relief valve (406).

9. The air-water curtain partition type smoke control system according to claim 1, characterized in that: The gas transmission pipeline adopts hot-dip galvanized seamless steel pipe.

10. The air-water curtain partition type smoke control system according to claim 3, characterized in that: An air compression system is composed of an air pump (403), an air pressure tank (404), an automatic drainer (405) and a safety pressure relief valve (406). The air supply sides of multiple air compression systems are connected through an air collecting pipe to serve as backup for each other.

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