Centralized fire pre-warning, alarm and extinguishing system for underground parking space

Abstract

The application discloses a centralized fire-fighting early warning, alarm and extinguishing system for underground parking space, which comprises a fire pool, a main fire water supply pump, a main fire water supply pump pipeline, a standby fire water supply pump, a standby fire water supply pump pipeline, a fixed smoke / temperature sensing early warning sending device, a main fire water supply pipeline, a water flow sensing alarm position wireless sending device, a fireproof unit control valve, an alarm sub-pipeline, an alarm water pressure alarm bell, a main fire water supply pipeline and a fireproof unit water supply pipeline connecting pipeline, a fireproof unit water supply pipeline, a fire monitor movable shaft, a fixed smoke / temperature sensing positioning device and a fire monitor. The fire pool is connected with the main fire water supply pipeline through the main fire water supply pump pipeline and the standby fire water supply pump pipeline. Each fireproof unit comprises the fireproof unit water supply pipeline, the fire monitor movable shaft, the fixed smoke / temperature sensing and positioning device and the fire monitor. The system is economical, simple, efficient and safe.

Description

Technical Field

[0001] This invention relates to the field of fire early warning, alarm, and fire extinguishing systems. In short, it is a centralized fire early warning, alarm, and fire extinguishing system for underground parking spaces. Background Technology

[0002] Currently, fire sprinkler systems in underground parking garages typically employ a point-array layout, with each sprinkler head connected in series. However, as urban construction becomes increasingly complex, buildings often possess multiple functions, resulting in intricate inter-building layouts. This necessitates the design and installation of fire sprinkler systems that traverse multiple buildings, requiring different types of piping to be designed and laid out. On one hand, the initial investment for installing a large number of fire sprinklers is substantial; on the other hand, the complex piping system leads to high maintenance costs in the long run. Furthermore, traditional fire sprinkler systems have complex piping distributions, occupying significant floor height in underground spaces, which also increases the investment required for underground parking space construction.

[0003] In traditional fire sprinkler systems, uneven heating or long-term pressure can cause glass fatigue in the sprinkler heads, leading to the risk of spontaneous breakage and causing numerous inconveniences for sprinkler system management and maintenance. Furthermore, the lack of a precise positioning system and fire early warning and prevention functions significantly impacts fire extinguishing efficiency. Summary of the Invention

[0004] To address the problems of uneven water pressure distribution, dense water pipes, large initial investment, inconvenient maintenance, and untimely early warning and alarm in current fire sprinkler systems, this invention proposes a centralized fire early warning, alarm, and fire suppression linkage control system for underground parking spaces, which includes three states: standby state, action state, and test state.

[0005] Another objective of this invention is to provide a multi-directional fire monitor device for a centralized fire early warning, alarm, and extinguishing system in underground parking spaces, which is economical, simple, efficient, and safe.

[0006] In order to achieve the above-mentioned objectives of the present invention, the following technical solution is adopted:

[0007] A centralized fire early warning, alarm, and extinguishing system for underground parking spaces includes:

[0008] Fire water tank, main fire water supply pump, main fire water supply pump pipeline, standby fire water supply pump, standby fire water supply pump pipeline, fixed smoke / temperature early warning transmitter, main fire water supply pipeline, water flow sensing alarm location wireless transmitter, fire protection unit control valve, alarm branch pipeline, alarm water pressure alarm bell, connecting pipeline between main fire water supply pipeline and fire protection unit water supply pipeline, fire protection unit water supply pipeline, fire monitor movable shaft, fixed smoke / temperature sensing positioning device, fire monitor;

[0009] The fire water tank is connected to the main fire water supply line via a main fire water supply pump pipeline and a backup fire water supply pump pipeline. The main fire water supply pump is installed on the main fire water supply pump pipeline, and the backup fire water supply pump is installed on the backup fire water supply pump pipeline. One end of the main fire water supply line is connected to the fire water tank, and the other end is connected to multiple fire protection units via a connecting pipeline between the main fire water supply line and the fire protection unit water supply pipeline. Each fire protection unit includes a fire protection unit water supply pipeline, a fire monitor's movable shaft, a fixed smoke / temperature sensor and positioning device, and a fire monitor. The fire protection unit control valve and alarm branch pipeline are installed on the connecting pipeline between the main fire water supply line and the fire protection unit water supply pipeline corresponding to each fire protection unit. Each alarm branch pipeline is equipped with an alarm water pressure alarm bell and a water flow sensing alarm location wireless transmission device. The fire monitor's movable shaft is located above the fire protection unit water supply pipeline, and both follow the same path.

[0010] The fixed smoke / heat detector early warning transmitter, the water flow sensor alarm location wireless transmitter, the fixed smoke / heat detector and positioning device, the main fire water supply pump, the backup fire water supply pump and the fire control room are connected for communication.

[0011] Furthermore, the fireproof unit water supply pipeline includes a water supply pipe, a laying circuit, four 90° elbows, three tee connectors, two four-way connectors, clamps, and a magnetic power supply water supply device. One four-way connector is located at the center, three tee connectors are located in the middle of three sides, and another four-way connector is located in the middle of the fourth side. The four 90° elbows are located at the vertices of the four sides. The four-way connector at the center is connected to the three tee connectors and the four-way connectors on the sides through the water supply pipe. The three tee connectors and the four-way connectors on the sides are connected to the corresponding 90° elbows through the water supply pipe. The clamps are used to connect the water supply pipe to the 90° elbows, tee connectors, and four-way connectors. The laying circuit and the magnetic power supply water supply device are located below the water supply pipe.

[0012] Furthermore, the fire monitor includes an infrared sensor, a liftable pulley, a pneumatic telescopic rod, a magnetic power supply water supply device, a turntable, a positioning probe, an upper and lower movable shaft, a water monitor nozzle, a telescopic rod storage compartment, a cross sliding device, and a cross tray. The infrared sensor is located on the side of the cross sliding device to detect and control the lifting of the liftable pulley and the pneumatic telescopic rod. The liftable pulley is located on the bottom surface of the "cross" end of the cross sliding device. The liftable pulley can extend from the bottom surface of the "cross" end or retract into the "cross" end, and two diagonal bars are provided on the axle for support, making the cross sliding device more stable during sliding. The liftable pulley can slide along the fire monitor's movable shaft below it. The pneumatic telescopic rod is located on the movable... On both sides of the direction, each pneumatic telescopic rod consists of a thin rod and a thick rod. The thin rod can extend from the thick rod and retract into the thick rod. The lower end of the thin rod is connected to the cross tray and forms an integral part with the cross tray, so that the lower part of the pneumatic telescopic rod is suspended below the water supply pipe. The telescopic rod storage compartment is used to store the pneumatic telescopic rod. The magnetic power supply water supply device is used to connect to the magnetic power supply water supply device below the water supply pipe, and plays the role of supplying water and power. The turntable is located below the cross tray and is connected to the upper and lower movable shaft below it. The water cannon nozzle can rotate around the upper and lower movable shaft, so that the water cannon nozzle has a larger range of motion. The positioning probe is set above the front end of the water cannon nozzle to locate the fire source and analyze the water pressure and water volume required for fire fighting.

[0013] Furthermore, the water supply pipeline is a DN fire-fighting pipeline, the electrical circuit is laid at the bottom of the water supply pipeline, and screws are used to install the clamps on both sides.

[0014] Furthermore, the fire water tank is equipped with a water level display instrument, which indicates the purpose and current capacity of the water tank, and the data is monitored in real time by the fire control room.

[0015] Furthermore, the fire water supply backup pump can replace the main fire water supply pump when it fails or is damaged, so as to ensure that sufficient pressure is provided to the fire monitor.

[0016] Furthermore, the main fire water supply pump, the main fire water supply pump pipeline, the standby fire water supply pump, and the standby fire water supply pump pipeline together form a pump control unit.

[0017] Furthermore, the main fire water supply pipeline and the fire protection unit water supply pipeline are equipped with antifreeze devices, including the power supply system and the antifreeze electric heat tracing system.

[0018] Based on the above-mentioned working method of the centralized fire early warning, alarm, and extinguishing system for underground parking spaces, the system includes a standby state, an operational state, and a test state.

[0019] The standby state is the normal state of the system. In the standby state, the system is in a standby state, ready to sense and respond to fire at any time. The fixed smoke / heat detection early warning transmitter, fixed smoke / heat detection positioning device, alarm water pressure alarm bell and fire monitor in the system are all in normal working condition and have not yet triggered any fire alarm signal.

[0020] The system operates as follows: It divides the space within the same fire compartment into several fire zones according to the actual situation. When the fixed smoke / heat detector detects smoke, high temperature, or open flame, the system will enter the operating state. The fire water tank provides sufficient water, and the water is then pushed to the fire monitor by the main fire water supply pump or the fire water supply backup pump. Under high pressure, the water is quickly discharged. The fire monitor covers the entire fire unit along the monitor's movable axis, and with the combined action of the turntable at the bottom of the fire monitor and the upper and lower movable axes, all-round fire extinguishing is implemented.

[0021] The test state is used to verify whether the entire fire prevention, warning, alarm, and extinguishing system is in a working standby state. During regular system testing and maintenance, the system will undergo a series of tests to ensure its normal operation.

[0022] Furthermore, the underground parking space is divided into several fire prevention zones, each with at least one fire prevention unit, and each fire prevention unit is operated by four fire monitors.

[0023] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0024] (1) For current fire extinguishing systems, there are often problems such as uneven water pressure distribution, and untimely warnings and alarms. This invention can effectively and quickly detect fire signals in the early stage of a fire. The fixed smoke / heat sensor warning transmitter can provide timely warnings. The water flow sensing alarm location wireless transmitter and alarm water pressure alarm bell can locate and alarm in time. The fire control room makes the best judgment. While extinguishing fires efficiently, it can accurately locate the fire source, which greatly improves the fire extinguishing efficiency.

[0025] (2) Traditional fire sprinkler systems can only target a fire source in a certain location or range, and the fire extinguishing water delivery speed is relatively slow. The water storage type fixed water cannons currently on the market have a small water storage capacity, and the maximum fire extinguishing range can only be fan-shaped, which cannot achieve 360° full coverage. Compared with traditional fire sprinkler systems, the fire water cannon used in this invention is a fully automatic sensing device, and at the same time, it uses a multi-directional operating device, so that the fire extinguishing range covers the entire underground parking space.

[0026] (3) At present, fire sprinkler systems in underground garages usually adopt a point array layout. The layout between buildings is complicated, and fire pipes need to pass through multiple buildings. Different types of fire pipes need to be designed and laid out. Not only is the initial investment huge, but the later maintenance cost is also high. The pipe system adopted in this invention is simple, economical and safe. It does not need to pass through multiple buildings, and the later maintenance cost is low. It also occupies less underground parking space. Attached Figure Description

[0027] Figure 1 This is a diagram of the centralized early warning, alarm, and fire extinguishing linkage control system for underground parking spaces according to the present invention.

[0028] Figure 2 This is a schematic diagram of the three states of the early warning, alarm, and fire extinguishing system of the present invention: the standby state, the action state, and the test state.

[0029] Figure 3 This is a schematic diagram of the early warning process of the present invention.

[0030] Figure 4 This is a schematic diagram of the fire extinguishing and alarm process of the present invention.

[0031] Figure 5 This is a diagram of the fire monitor node of the present invention (I).

[0032] Figure 6 This is a diagram (II) of the fire monitor of the present invention.

[0033] Figure 7 This is a cross-sectional view of the cross sliding device of the present invention (including the telescopic rod storage compartment).

[0034] Figure 8 This is a cross-sectional view of the water cannon of the present invention.

[0035] Figure 9 This is a node diagram of the lower part (below the pneumatic telescopic rod 16-3) of the fire monitor of the present invention.

[0036] Figure 10 This is a diagram of the fireproof unit pipeline connection structure of the present invention. Detailed Implementation

[0037] To gain a deeper understanding of the present invention, the present invention will be further described in detail below through specific embodiments and in conjunction with the accompanying drawings.

[0038] For the structural components and materials described below, other components or materials may be used as substitutes, provided that the entire fire extinguishing process is met. Furthermore, the operations, methods, and features described herein are permissible to be implemented in other ways without altering the original design concept, and may be extended, modified, or replaced, but all such extensions, modifications, or substitutions should be included within the scope of protection of this invention.

[0039] A centralized fire early warning, alarm, and extinguishing system for underground parking spaces, such as Figure 1-10 As shown;

[0040] This invention relates to a novel centralized fire early warning, alarm, and extinguishing system for underground parking spaces, which mainly comprises the following components: a fire water tank 1, a main fire water supply pump 2, a main fire water supply pump pipeline 3, a backup fire water supply pump 4, a backup fire water supply pump pipeline 5, a fixed smoke / temperature sensor early warning transmitter 6, a main fire water supply pipeline 7, a water flow sensor alarm location wireless transmitter 8, a fire protection unit control valve 9, an alarm branch pipeline 10, an alarm water pressure alarm bell 11, a connecting pipeline between the main fire water supply pipeline and the fire protection unit water supply pipeline 12, a fire protection unit water supply pipeline 13, a fire monitor movable shaft 14, a fixed smoke / temperature sensor positioning device 15, and a fire monitor 16.

[0041] The alarm system consists of a water flow sensing alarm location wireless transmitter 8, an alarm branch line 10, an alarm water pressure alarm bell 11, and a fixed smoke / temperature sensor and positioning device 15. It can detect the initial fire in the protected area in a timely and accurate manner, and issue an alarm response to the people in the building, so as to effectively evacuate people to a safe place.

[0042] The following explanation will focus on the three states of this fire alarm control system: servicing state, operational state, and testing state.

[0043] Standby Status: Standby status is the normal state of this fire protection system. To ensure stable fire suppression effects, the entire underground parking space's fire zone can be monitored in real time during standby status. A main fire pump 2 and a standby pump 4 are installed at the fire water tank, forming an independent pump control unit. When the main pump 2 fails or is under maintenance, the standby pump 4 takes over, remaining in standby mode at all times. During standby status, the underground parking garage fire protection system is on standby, ready to detect and respond to fires at any time. The fixed smoke / heat detectors 6, 15, 11, and 16 are all in normal working order and have not yet triggered any fire alarm signals.

[0044] Operation Status: This fire protection system divides the space within the same fire protection area into several fire protection units according to actual conditions. Each fire protection unit consists of several fixed smoke / heat detectors 15, fire protection unit water supply pipelines 13, fire monitors 16, and fire monitor movable shafts 14. When the fixed smoke / heat detectors 15 detect smoke, or the heat detectors detect high temperatures or other signs of fire, the underground garage fire protection system will enter the operation status. Sufficient water will be provided by the fire water tank 1, and the water will be propelled to the fire monitors 16 through the main fire water supply pump 2 or the backup fire water supply pump 4. Under high pressure, the water will be rapidly discharged and maximized through the fire monitor movable shafts 13 to achieve all-round fire suppression.

[0045] Test Status: The purpose of the test status is to verify whether the entire fire prevention, early warning, alarm, and fire suppression system is in a working and ready state, and to conduct regular system testing and maintenance. In this state, the fire protection system undergoes a series of tests to ensure its normal operation.

[0046] In this fire extinguishing system, the capacity of the fire water tank 1 in the underground garage is determined according to the size of the underground garage and the fire risk. Its side is connected to the main fire water supply pump pipeline 3 and the backup fire water supply pump pipeline 5, which are respectively connected to the main fire water supply pump 2 and the backup fire water supply pump 4. It is constructed of concrete or steel.

[0047] Fire water tank 1 is equipped with a water level display instrument, which indicates the purpose of the water tank and its current storage capacity.

[0048] In this fire extinguishing system, the fire water tank 1 in the underground garage is used for fire safety in the underground parking space and is usually located underground.

[0049] In this fire extinguishing system, the main fire water supply pump 2 in the underground garage should have a flow rate of 540 cubic meters per minute and a power of no more than 160 kW. It forms an independent pump control unit with the backup fire water supply pump 4. When the main fire water supply pump 2 encounters a malfunction or power outage, the backup fire water supply pump 4 will take over the operation of the main fire water supply pump 2.

[0050] In this fire extinguishing system, the main fire water supply pump pipeline 3 should preferably use a DN150 pipe. The pipe diameter must be equal to or greater than the pump inlet diameter, but not less than 100mm.

[0051] The underground garage fire protection system, fire water supply main line 7, and fire protection unit water supply line 13 are equipped with antifreeze devices, including power supply system and antifreeze electric heat tracing system.

[0052] like Figure 10The pipeline 13 includes a laying circuit 13-2, a clamp 13-6, a 90° elbow 13-3, a tee connector 13-4, a four-way connector 13-5, a magnetic power supply water supply device (positive pole) 13-7, and a valve is installed on the pipeline.

[0053] In this fire extinguishing system, the fire water supply backup pump 4 is a backup device used when the fire water supply main pump 2 fails or is under maintenance. It is used to replace the main pump 2 and is always on standby.

[0054] In this fire extinguishing system, the fire water supply backup pump pipeline 5 has the same material and diameter as the main pump pipeline 3;

[0055] In the water pump control unit, the fire water supply main pump pipeline 3 is connected to the fire water supply standby pump pipeline 5, and finally connected to the fire water supply main pipeline 7.

[0056] In this fire extinguishing system, the water pump control unit, the fixed smoke / heat sensor early warning transmitter 6, and the water flow sensor alarm location wireless transmitter 8 transmit signals to the fire control room.

[0057] In this fire extinguishing system, the fixed smoke / heat detection early warning transmitter 6 is a prefabricated smoke detector with added heat detection and wireless transmission device. Its position is the same as the fixed smoke / heat detection positioning device 15, which will not be described in detail here.

[0058] In this fire extinguishing system, the fire protection unit control valve 9 is installed on the firewall or other fire-resistant partition structure to maximize its function of fire prevention and control of fire spread.

[0059] In this fire extinguishing system, the alarm branch line 10 should be wired using metal conduit and connected to the water flow sensing alarm location wireless transmitter 8.

[0060] In this fire extinguishing system, when the alarm branch line 10 is laid, the total area occupied should not exceed 40% of the cross-sectional area of ​​the pipe, and the total area of ​​the insulated wires or cables running through the cable tray should not exceed 60% of the cross-sectional area of ​​the cable tray.

[0061] In this fire extinguishing system, the main fire water supply line 7 uses ordinary hot-dip galvanized steel pipe DN150.

[0062] In this fire extinguishing system, the water flow sensing alarm location wireless transmission device 8 is a wireless transmission device added to the existing water flow sensor, which will not be described in detail here.

[0063] In this fire extinguishing system, the alarm water pressure alarm bell 11 can be a GST-JL series fire alarm bell, JDJL-1 (220V) explosion-proof alarm bell or GST-JL alarm bell as a special product for fire alarm and linkage system.

[0064] The working pressure of the alarm water pressure bell 11 should not be less than 0.05 MPa. The pipe connected to the alarm valve should have a diameter of 20 mm and a total length not exceeding 20 m. The alarm bell 11 should be installed on the exterior wall near a public passage or duty room, and should be equipped with valves for maintenance and testing. The connection between the alarm bell and the alarm valve should use hot-dip galvanized steel pipe. When the nominal diameter of the galvanized steel pipe is 20 mm, its length should not exceed 20 m. When the installed alarm water pressure bell is activated, the sound intensity of the alarm bell at a distance of 3 m should not be less than 70 dB.

[0065] There should be no fewer than two connecting pipelines between the main fire water supply line 7 and the fire protection unit water supply line 13. If one of them fails, the remaining inlet pipes should be able to meet the water supply requirements. The flow velocity in the pipe should not exceed 2.5 m / s, and the water supply velocity in any fire pipeline should not exceed 7 m / s. The pH value of the water normally filled in the fire water supply pipeline should be 6.0-9.0.

[0066] In this fire extinguishing system, the diameter of the fire protection unit water supply pipeline 13 should not be less than DN100, and there should be no less than two pipelines. When one of them fails, the remaining water supply pipelines should be able to meet the total water supply requirements for fire fighting.

[0067] The lower part of the fire protection unit's power supply line has a pipeline 13-2, which is the power source for the fire monitor 16 to extinguish fires;

[0068] Pipeline 13-2 is equipped with a magnetic power supply water supply device (positive pole) every 3 meters 13-7.

[0069] A fire protection unit has a fire monitor movable shaft 14. Since the fire monitor 16 is attached to the movable shaft 14 to complete its work, the installation position of the fire monitor movable shaft 14 is an important part of the entire fire extinguishing system.

[0070] The movable shaft 14 of the fire monitor is made of 6.5 light channel steel and is attached to the upper part of the water supply pipeline 13 of the fire protection unit by screws and clamps 13-6 or by direct welding.

[0071] The horizontal distance between the fixed smoke / temperature sensor positioning device 15 and the wall or beam should not be less than 0.5m, and there should be no obstructions within a horizontal distance of 0.5m around it.

[0072] In this fire extinguishing system, the fixed smoke / temperature sensing location device 15 adopts an integrated smoke and temperature sensing device. The smoke sensing location device is usually installed at a distance of less than 15 meters in diameter, while the smoke sensing location device is usually installed at a distance of less than 10 meters in diameter. When this device takes into account both temperature and smoke sensing, its installation distance should not exceed 10 meters in diameter.

[0073] Combination Figure 5-9In this fire extinguishing system, the fire monitor 16 is suspended below the water supply pipeline of the fire protection unit and is connected to the cross-shaped movable device 16-10 above the movable shaft 14 of the fire monitor through four pneumatic telescopic rods 16-3.

[0074] The upper end of the fire monitor 16 is equipped with a positioning probe 16-6, which can detect the fire source in real time, locate and aim at the fire and extinguish the fire when in operation, and transmit the fire location information and the information after the fire extinguishing action is completed to the control center in a timely manner.

[0075] In this fire extinguishing system, the vertically movable shaft 16-7 at the rear end of the fire monitor 16 enables the monitor to move up and down, and then rotates 360° via the upper turntable 16-5.

[0076] Furthermore, the power supply system described in this invention includes an emergency power supply and a wired power supply.

[0077] Furthermore, the communication connection between the wireless transmission, fire early warning, fire alarm and other series of devices described in this invention and the fire control room can be one or a combination of GPRS, 2G, 3G, 4G and 5G.

[0078] Furthermore, the control center signal receiving server is operated by one or more of the following components: facility status detection, report generation, facility data, coordinate location, and real-time data analysis.

[0079] Furthermore, the aforementioned facility status detection is mainly used to detect the working status of server equipment, including standby status, action status, and test status; report generation is used to analyze the fire signals and make decisions manually or by computer; coordinate location is used to determine the coordinate location information of each fire protection facility and fire hazard, and then send its address to the server in the fire control room; the real-time data analysis module is used to analyze the fire size, water consumption, supply pressure, and overall data analysis after the fire source is cleared.

[0080] The server in the aforementioned control center needs to promptly generate basic data from the collected fire information to prevent false fire alarms. It also needs to monitor the size of the fire, make effective judgments on the actual fire situation, and then formulate an overall optimization plan to ensure the feasibility of firefighting.

[0081] Example 1

[0082] If a fire breaks out in a parked vehicle in an underground parking space, in this embodiment, when the fire occurs, the sensor module (fixed smoke / heat detection early warning transmitter 6) first detects the fire (if it is confirmed to be a false alarm, the following tasks will not be performed), and transmits this signal to the real-time data analysis module. The real-time data analysis module also transmits the signal to the fire monitor 16. When the water flows through the alarm water pressure alarm bell 11, the alarm water pressure alarm bell 11 sounds an alarm and automatically broadcasts a voice notification to nearby personnel in the underground parking space to evacuate. The fire control center server is responsible for receiving, displaying, and transmitting the fire alarm signal. The fire alarm bell alerts on-site personnel in the form of sound waves. Under the monitoring of the server, the alarm water pressure alarm bell 11 can directly report to the local fire department. The specific operation can be confirmed or canceled by the relevant responsible personnel. If no operation is performed within a few minutes, the system will automatically report to the local fire department. The specific implementation plan depends on the size of the fire and continuously provides fire information. At this time, the cross sliding device 16-10 accurately calculates the optimal fire extinguishing path through the server.

[0083] The alarm system employs three states during implementation: responsive state, action state, and test state to achieve the aforementioned technology. Figure 4 As shown

[0084] Of the three states, the standby state and the action state are determined by the test results of the experimental state to determine whether they can work normally. When the above fire occurs, the action state is immediately entered.

[0085] In operation, the main fire water supply pump 2 or the standby fire water supply pump 4 operates under the command of the fire control room, drawing fire water from the main fire water supply pump pipeline 3 or the standby fire water supply pump pipeline 5 and their combinations from the main fire water supply pipeline 7 to the fire protection unit water supply pipeline 13.

[0086] When firefighting water reaches a fire hazard, the cross sliding device 16-10 operates according to the fire situation, causing the fire monitor 16 to quickly move to the fire location on the water bubble movable shaft 14. It connects to the magnetic power supply water supply device (negative pole) 16-4 and sprays firefighting water. Under the action of water pressure and the water pump control unit, the water flow sensing alarm location wireless transmitter 13 reacts, automatically transmitting the fire prevention unit data back to the server. Simultaneously, it activates the alarm water pressure alarm bell 11 of the fire prevention unit, reminding personnel in the underground parking space area to evacuate to ensure personal and property safety. The fire water tank 1 provides a sufficient water source, which is then propelled to the fire monitor 16 by the main fire water supply pump 2 or the fire water supply backup pump 4. Upon reaching the fire location, the water is rapidly discharged under high pressure and maximized through the fire monitor movable shaft 14, thus implementing all-round fire suppression.

[0087] In this implementation, the cross-shaped sliding device 16-10 is located on the upper part of the fire monitor's movable shaft 14. Four infrared sensors 16-1 are installed on the cross-shaped sliding device 16-10, located at its front, rear, left, and right sides respectively. The main movement of the cross-shaped sliding device 16-10 is via liftable pulleys 16-2 at its front, rear, left, and right sides. During movement, typically only the pulleys in the direction of movement are lowered, retracting the pulleys on both sides into the cross-shaped sliding device 16-10 to facilitate its passage on the fire monitor's movable shaft 14 (details will be provided below). Two pneumatic telescopic rods 16-3 are installed at the front and rear of the cross-shaped sliding device 16-10. Their main purpose is to connect to the fire monitor 16 below and to pass through the complex fire protection unit's water supply pipelines. Each pneumatic telescopic rod 16-3 can extend or retract independently, or two rods can extend or retract simultaneously in the same direction. The telescopic rods are equipped with a dedicated telescopic rod storage compartment 16-9.

[0088] In this implementation case, combined with Figure 5-9 The fire monitor 16 includes a magnetic power supply device (negative pole) 16-4 installed at the top, and a cross tray 16-11 connected to four pneumatic telescopic rods 16-3. The four ends of the cross tray 16-11 are provided with locking holes. The lower part of the cross tray 16-11 is provided with a turntable 16-5 that can rotate 360° and an up-and-down movable shaft 16-7. The bottom is the water cannon nozzle 16-8, and the nozzle is provided with a positioning probe 16-6.

[0089] When the cross-shaped sliding device 16-10 receives an accurate fire signal, it reacts quickly. The cross-shaped sliding device 16-10 travels along the fire monitor's movable shaft 14, with its lower part connected to the fire monitor 16, accurately reaching the location of the fire and extinguishing it within the effective fire-fighting range. It is important to note that the cross-shaped sliding device 16-10 is located above the fire unit's water supply pipeline 13 and the fire monitor's movable shaft 14. When it is about to contact the 90° elbow 13-3, the tee connector 13-4, or the four-way connector 13-5, the infrared sensor 16-1 above it reacts quickly, sending a command to the control board inside the cross-shaped sliding device 16-10. Subsequently, the pneumatic telescopic rod 16-3 at the front end of the fire monitor 16 will quickly retract into the telescopic rod storage compartment 16-9 under the control of the cross-shaped sliding device 16-10 (see reference). Figure 7(Note that the material of the pneumatic telescopic rod 16-3 is determined by the quality of the water cannon below, and its strength should be sufficient to prevent swaying, tilting, or damage when connected only by two telescopic rods 16-3 on the same side) until the two pneumatic telescopic rods 16-3 at the front end of the cross sliding device 16-10 have completely passed through the pipe. Then, these two pneumatic telescopic rods 16-3 will quickly fall down after passing through, continuing to connect with the fire cannon 16. When the thin rod of the pneumatic telescopic rod 16-3 extends into the cross tray 16-11, it will automatically connect with the cross tray 16-11 to form a whole without swaying or even falling off (refer to the cross tray 16-11 notch in the cross section). Figure 8 Complete the connection reference Figure 5 When the rear end of the cross sliding device 16-10 approaches the pipe, the pneumatic telescopic rod 16-3 behind it will be quickly raised. The above operation will be repeated, and finally the cross tray 16-11 will be lowered and locked.

[0090] When the cross-shaped sliding device 16-10 travels along the movable shaft 14 of the fire monitor, only the two liftable pulleys 16-2 in the direction of movement usually drop down, while the two liftable pulleys 16-2 on both sides of the direction of movement retract into the interior of the cross-shaped sliding device 16-10 (see reference). Figure 7 The main reason for this is that when passing through 90° bends 13-3, tee connectors 13-4, or four-way connectors 13-5, if the two adjustable pulleys 16-2 on the left and right are in a downward state, they will collide with the wing plates of the fire monitor's movable shaft 14 during the passage. Therefore, when it is about to contact the 90° bends 13-3, tee connectors 13-4, or four-way connectors 13-5, the fire monitor's movable shaft 14 above it is also in a crossed or 90° bent state (the fire monitor's movable shaft 14 is the same as the fire unit's water supply pipeline 13, and it is laid on top of the fire unit's water supply pipeline 13). The fire monitor's movable shaft 14 is made of lightweight channel steel and has wing plates on both sides. To prevent the adjustable pulleys 16-2 from contacting the wing plates, the adjustable pulleys 16-2 on both sides of the moving direction are retracted into the cross sliding device 16-10.

[0091] When the fire monitor 16 reaches the area of ​​the responsible fire prevention unit where the fire source is located, the magnetic power supply device (negative pole) 16-4 on the upper part of the fire monitor 16 will automatically connect to the magnetic power supply device (positive pole) 13-7 below the pipe through the magnetic suction port under the action of magnetism. At the same time, the upper end of the magnetic power supply device (positive pole) 13-7 on the upper part of the fire monitor 16 is equipped with a triangular rotating buckle similar to that of the pneumatic telescopic rod 16-3 (see reference). Figure 8When the two magnetically powered water supply devices (positive and negative poles) are successfully connected, the water cannon 16 will automatically pop out, thus securing it completely to the fire unit's water supply pipeline 13. Furthermore, the magnetically powered water supply device (positive pole) 13-7 installed on the fire unit's water supply pipeline 13 releases power through the laying circuit 13-2 at the bottom of the fire unit's water supply pipeline 13. When the two magnetically powered water supply devices (positive and negative poles) are successfully connected, this device will react quickly, providing sufficient power to the water cannon 16 below. The magnetically powered water supply device (positive pole) 13-7 will automatically cause fire-fighting water to flow into the fire cannon 16 under the action of the main fire-fighting water supply pump 2 or the backup fire-fighting water supply pump 4.

[0092] After the entire fire suppression system is fully operational (the description is somewhat complex for better understanding; in actual operation, the reaction speed far exceeds the fire suppression requirements), the fire monitor 16 will accurately locate itself based on the alarm display position. Connected to the monitor nozzle 16-8 are a turntable 16-5 and an up-and-down movable shaft 16-7, allowing the monitor nozzle 16-8 to move significantly, increasing the area of ​​the fire suppression water source that can reach it. The monitor nozzle 16-8 is equipped with a positioning probe 16-6. When a fire source is detected, this probe allows the monitor nozzle to accurately aim at the fire source, adjust the water pressure according to the fire situation, analyze the water volume required for the fire suppression operation, and finally transmit the data to the fire control room promptly after the fire is extinguished.

[0093] When the control center receives information that the fire hazard has been eliminated, the alarm is immediately lifted. The computer then analyzes the cause of the fire and the firefighting data for the entire operation, and finally produces an analysis report.

[0094] Example 2

[0095] In extreme cases, such as a fire in an underground parking space, one fire monitor 16 may not be enough to complete the firefighting task. In such cases, four fire monitors 16 of a fire protection unit need to operate simultaneously. In this situation, the cooperative relationship between the fire monitors 16 needs to be considered to improve the fire extinguishing efficiency.

[0096] Furthermore, considering the severity of the fire in extreme circumstances, the fixed smoke / heat detectors and location devices 15 in the fire zone react first, promptly uploading fire information to the server in the fire control center. Given this priority, the fixed smoke / heat detector warning transmitters 6 do not need to issue warnings, and the fire protection system immediately enters operational mode. The fixed smoke / heat detector warning transmitters 6 then transmit signals to the server in the fire control room and the water pump control unit. At this time, the four fire monitors 16 operate simultaneously due to the fire, completing the firefighting task in a more efficient manner.

[0097] At this time, if the magnetic power supply device (negative pole) 16-4 on the cross tray 16-11 of any fire monitor 16 is successfully connected to the magnetic power supply device (positive pole) 13-7 at the bottom of the water supply pipeline of the fire protection unit (the connection method is as in Example 1), under the action of water pressure, the alarm water pressure alarm bell 11 will sound an alarm to remind the personnel in the underground parking space area to complete the evacuation to ensure personal and property safety. Then the fire monitor 16 performs the fire extinguishing task of the system operation. A fire protection unit can be divided into four small fire protection zones, which are respectively responsible for by four fire monitors 16. When the hidden dangers within the responsibility area of ​​the fire monitor 16 are completely eliminated, the fire monitor 16 will go to the responsibility area of ​​other monitors 16 according to the urgency of the fire in other areas to jointly complete the fire extinguishing task. The magnetic power supply device (positive pole) 13-7 under the moving shaft 14 of the fire monitor is set every 3m. As described above, the responsibility area of ​​the fire monitor 16 is divided into two parts by the center of opposite sides of a fire protection unit (similar to a rectangle). Each fire monitor 16 is usually located at one of the four corners of the fire protection unit. In the extreme case mentioned above, priority is given to starting from the four corners of the fire protection unit. The fire monitor 16 completes the fire extinguishing task according to its own responsibility area, and then moves to the responsibility areas of other fire monitors 16 to extinguish the fire according to the size of the fire. The positioning probe 16-7 at the front end of the water monitor nozzle 16-8 determines the priority fire extinguishing position according to the priority of the fire extinguishing area (such as vehicles, mechanical equipment, garage personnel). Only after the fire hazard is completely eliminated can the four water monitors 16 be reset through the fire monitor movable shaft 14 and return to the original four corners.

[0098] Fire monitor 16 then synchronizes the firefighting data to the control center server, where the system analyzes the time and water consumption required for the operation. The alarm is then lifted, and the computer analyzes the cause of the fire and the overall firefighting data, ultimately producing an analysis report.

[0099] The above detailed description of specific embodiments of the present invention enables those skilled in the art to implement and create it. The systems and fire extinguishing devices conceived in this invention can be modified without departing from the spirit of the invention. Furthermore, the examples presented herein demonstrate the application of this system to two fire extinguishing scenarios in underground parking spaces, but this does not limit the scope of the invention. The ideas and concepts described herein can be used to broaden the scope of the invention. Additionally, any extensions, modifications, or substitutions made based on the original design concept should be included within the protection scope of this invention.

Claims

1. A centralized fire early warning, alarm, and extinguishing system for underground parking spaces, characterized in that, include: Fire water tank (1), fire water supply main line (7), fire water supply main line and fire protection unit water supply pipeline connection line (12), fire protection unit water supply pipeline (13), fire monitor movable shaft (14), fire monitor (16). One end of the fire water supply main line (7) is connected to the fire water tank (1), and the other end is connected to multiple fire protection units through the fire water supply main line and the fire protection unit water supply pipeline connection line (12). Each fire protection unit includes a fire protection unit water supply pipeline (13), a fire monitor movable shaft (14), and a fire monitor (16). The fire monitor movable shaft (14) is located above the fire protection unit water supply pipeline (13) and the two have the same path. The fireproof unit water supply pipeline (13) includes a water supply pipe (13-1), four 90° elbows (13-3), three tee connectors (13-4), two four-way connectors (13-5), and a positive terminal (13-7) of a magnetic power supply water supply device. One four-way connector (13-5) is located in the center, three tee connectors (13-4) are located in the middle of three sides, and another four-way connector (13-5) is located in the middle of the fourth side. The four 90° elbows (13-1, 13-2, 13-3, 13-4, 13-3, 13-4, 13-5, 13-3, 13-4, 13-5, 13-6, 13-7, 13-7, 13-8, 13-9, 13-1 ... 13-3) Located at the vertices of the four sides, the four-way connector (13-5) at the center is connected to the three three-way connectors (13-4) and the four-way connectors (13-5) on the side through the water supply pipe (13-1). The three three-way connectors (13-4) and the four-way connectors (13-5) on the side are connected to the corresponding 90° elbows (13-3) through the water supply pipe (13-1). The positive pole (13-7) of the magnetic power supply water supply device is located below the water supply pipe (13-1). The fire monitor (16) includes an infrared sensor (16-1), a liftable pulley (16-2), a pneumatic telescopic rod (16-3), a magnetic power supply water supply device negative electrode (16-4), a turntable (16-5), a positioning probe (16-6), an up-and-down movable rotating shaft (16-7), a water cannon nozzle (16-8), a telescopic rod storage compartment (16-9), a cross sliding device (16-10), and a cross tray (16-11). The infrared sensor (16-1) is located on the side of the cross sliding device (16-10) to detect and control the liftable pulley. The lifting of the wheel (16-2) and the pneumatic telescopic rod (16-3); the liftable pulley (16-2) is located on the bottom surface of the "cross" end of the cross sliding device (16-10). The liftable pulley (16-2) can extend from the bottom surface of the "cross" end or retract into the "cross" end. Two diagonal rods are provided on the wheel axle for support, making the cross sliding device (16-10) more stable during sliding. The liftable pulley (16-2) can slide along the movable shaft (14) of the fire monitor below it; the pneumatic telescopic rod (16-3) is located on both sides of the moving direction, and each pneumatic... The telescopic rod (16-3) consists of a thin rod and a thick rod. The thin rod can extend from the thick rod and retract into it. The lower end of the thin rod is connected to the cross tray (16-11) and forms a whole with the cross tray (16-11), so that the lower part of the pneumatic telescopic rod (16-3) is suspended below the water supply pipe (13-1). The telescopic rod storage compartment (16-9) is used to store the pneumatic telescopic rod (16-3). The negative pole (16-4) of the magnetic power supply water supply device is set on the cross tray (16-11) and is used to connect to the water supply pipe. (13-1) The magnetic power supply device below is connected to the positive pole (13-7), which serves to supply water and power. The turntable (16-5) is located below the cross tray (16-11). The turntable (16-5) is connected to the upper and lower movable shaft (16-7) below it. The water cannon nozzle (16-8) can rotate around the upper and lower movable shaft (16-7), so that the water cannon nozzle (16-8) has a larger range of motion. The positioning probe (16-6) is set above the front end of the water cannon nozzle (16-8) to locate the fire source and analyze the water pressure and water consumption required for fire extinguishing. When the cross-shaped sliding device (16-10) is about to contact the 90° elbow (13-3), tee connector (13-4), or four-way connector (13-5), the infrared sensor (16-1) above will react quickly and send a command to the control board inside the cross-shaped sliding device (16-10). Subsequently, the pneumatic telescopic rod (16-3) at the front end of the fire monitor (16) will be quickly retracted into the telescopic rod storage compartment (16-9) under the control of the cross-shaped sliding device (16-10) until the two ends at the front end of the cross-shaped sliding device (16-10) are retracted. Two pneumatic telescopic rods (16-3) will pass completely through the pipe. Then, the two pneumatic telescopic rods (16-3) will quickly fall down after passing through and continue to connect with the fire monitor (16). When the thin rod of the pneumatic telescopic rod (16-3) extends into the cross tray (16-11), it will automatically connect with the cross tray (16-11) to form a whole. When the rear end of the cross sliding device (16-10) approaches the pipe, it will immediately raise the pneumatic telescopic rod (16-3) behind it quickly. The above operation will be repeated. Finally, it will be lowered to connect with the cross tray (16-11) and lock in place.

2. The centralized fire early warning, alarm, and extinguishing system for underground parking spaces according to claim 1, characterized in that, The system also includes a fire water supply main pump (2), a fire water supply main pump pipeline (3), a fire water supply standby pump (4), a fire water supply standby pump pipeline (5), a fixed smoke / temperature sensor early warning transmitter (6), a water flow sensor alarm location wireless transmitter (8), a fire protection unit control valve (9), an alarm branch pipeline (10), an alarm water pressure alarm bell (11), and a fixed smoke / temperature sensor positioning device (15). The fire water tank (1) is connected to the main fire water supply line (7) through the main fire water supply pump line (3) and the backup fire water supply pump line (5). The main fire water supply pump (2) is installed on the main fire water supply pump line (3), and the backup fire water supply pump (4) is installed on the backup fire water supply pump line (5). Each fire protection unit also includes a fixed smoke / temperature sensor and positioning device (15). The fire protection unit control valve (9) and alarm branch line (10) are installed on the fire water supply main line and the fire protection unit water supply line connection line (12) corresponding to each fire protection unit. Each alarm branch line (10) is equipped with an alarm water pressure alarm bell (11) and a water flow sensing alarm position wireless transmission device (8). The fixed smoke / temperature early warning transmitter (6), the water flow sensing alarm location wireless transmitter (8), the fixed smoke / temperature sensor and positioning device (15), the fire water supply main pump (2), the fire water supply backup pump (4) are connected to the fire control room for communication.

3. The centralized fire early warning, alarm, and extinguishing system for underground parking spaces according to claim 2, characterized in that, The fireproof unit water supply pipeline (13) also includes a laying circuit (13-2) and a clamp (13-6). The clamp (13-6) is used to connect the water supply pipeline (13-1) with the 90° elbow (13-3), the tee connector (13-4), and the four-way connector (13-5). The laying circuit (13-2) is located below the water supply pipeline (13-1).

4. The centralized fire early warning, alarm, and extinguishing system for underground parking spaces according to claim 3, characterized in that, The water supply pipeline (13-1) is a DN100 fire protection pipeline, the circuit (13-2) is located at the bottom of the water supply pipeline, and the clamps (13-6) are installed with screws on both sides.

5. The centralized fire early warning, alarm, and extinguishing system for underground parking spaces according to claim 3, characterized in that, The fire water tank (1) is equipped with a water level display instrument, and the data is monitored in real time by the fire control room.

6. The centralized fire early warning, alarm, and extinguishing system for underground parking spaces according to claim 3, characterized in that, The fire water supply backup pump (4) can replace the fire water supply main pump (2) to complete the work when the fire water supply main pump (2) fails or is damaged, so as to ensure that sufficient pressure is provided to the fire monitor (16).

7. The centralized fire early warning, alarm, and extinguishing system for underground parking spaces according to claim 3, characterized in that, The fire water supply main pump (2), fire water supply main pump pipeline (3), fire water supply standby pump (4), and fire water supply standby pump pipeline (5) together form a water pump control unit.

8. The centralized fire early warning, alarm, and extinguishing system for underground parking spaces according to claim 3, characterized in that, The fire water supply main line (7) and the fire protection unit water supply line (13) are equipped with antifreeze devices, including a power supply system and an antifreeze electric heat tracing system.

9. The method for operating the centralized fire early warning, alarm, and extinguishing system for underground parking spaces according to any one of claims 3-8, characterized in that, The system includes a servicing state, an action state, and a test state. The standby state is the normal state of the system. In the standby state, the system is in standby state, ready to sense and respond to fire at any time. The fixed smoke / heat sensor warning transmitter (6), fixed smoke / heat sensor positioning device (15), alarm water pressure alarm bell (11) and fire monitor (16) in the system are all in normal working state and have not yet triggered any fire alarm signal. The operating state is as follows: The system divides the space within the same fire compartment into several fire zones according to the actual situation. When the fixed smoke / temperature sensor (15) detects smoke, high temperature or open flame, the system will enter the operating state. The fire water tank (1) provides sufficient water, and the water is pushed to the fire monitor (16) through the main fire water supply pump (2) or the backup fire water supply pump (4). Under the action of high pressure, the water is quickly discharged. The fire monitor (16) covers the entire fire unit along the fire monitor's movable axis (14), and under the joint linkage of the turntable (16-5) at the bottom of the fire monitor (16) and the upper and lower movable shafts (16-7), all-round fire extinguishing is carried out. The test state is used to verify whether the entire fire prevention, warning, alarm, and extinguishing system is in a working standby state. During regular system testing and maintenance, the system will undergo a series of tests to ensure its normal operation.

10. The method according to claim 9, characterized in that, The underground parking space is divided into several fire prevention zones. Each fire prevention zone is equipped with at least one fire prevention unit, and each fire prevention unit is operated by four fire monitors (16).

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