Fire-fighting pipeline external pressurizing device for building and sensing system of fire-fighting pipeline external pressurizing device

Abstract

The invention relates to the technical field of pressurizing devices, in particular to an external pressurizing device for a fire fighting pipeline of a building and an induction system.The pressurizing device comprises a main stabilized pressure pump, a standby stabilized pressure pump and a water storage tank, and the water storage tank is connected to a flow dividing pipe through a pipeline; the flow dividing pipe is connected with the main pressure stabilizing pump and the standby pressure stabilizing pump through a double-channel structure with a flow dividing valve, a recycling box is assembled on the fixing frame and connected with the first pressurizing pipe through a bottom pipe, a top cover is assembled on the recycling box, a recycling head is installed on the top cover through a quick disassembling structure, and the recycling head is connected to the standby pressure stabilizing pump through a hose. The standby stabilized pressure pump is connected with the water storage tank through a recycling pipe, a filtering head is connected to a recycling head through a rotary pipe and located on a base at the bottom of the recycling box, a rotary magnetic control structure is installed on the base, and a brush plate is installed in the recycling box. The purpose of accurately controlling the water pressure of the fire-fighting pipeline can be achieved.

Description

Technical Field

[0001] The invention relates to the technical field of pressurizing devices, in particular to an external pressurizing device for fire protection pipes of buildings and an induction system thereof. Background Art

[0002] In modern buildings, fire safety has always been an important link that cannot be ignored. The function of fire-fighting pipes is mainly to provide timely and sufficient water sources to deal with sudden fires. However, insufficient water supply pressure and unstable flow often become factors that hinder the effectiveness of firefighting. Therefore, it is necessary to increase the water pressure of the fire-fighting pipe system through an external pressurizing device to deal with sudden fires. Common external pressurizing devices usually use fire-fighting booster and pressure-stabilizing equipment, which can provide stable power and pressure for fire-fighting water pumps, so that the fire-fighting system can operate quickly in an emergency. When a fire does not occur, traditional booster and pressure-stabilizing equipment can monitor the pressure in the fire-fighting pipe, and then adjust the speed of the pressure-stabilizing pump to stabilize the water pressure of the user's fire-fighting pipe network at the pressure value preset by the user to maintain its minimum fire-fighting pressure and keep the entire system in a fire-fighting ready state.

[0003] However, when traditional boosting and stabilizing equipment is performing the above work, since it mainly adjusts the pressure in the fire-fighting pipe through a pressure-stabilizing pump, the start and stop time control of the pressure-stabilizing pump requires very precise control. However, the system's control accuracy of the pressure-stabilizing pump is often difficult to meet the requirements, resulting in frequent overpressure or underpressure in the fire-fighting pipe. Summary of the invention

[0004] The purpose of the present invention is to provide an external pressurizing device for fire protection pipes in buildings and its sensing system, so as to achieve the purpose of accurately controlling the water pressure of fire protection pipes and solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an external pressure-boosting device for fire-fighting pipes in buildings, comprising a main pressure-boosting pump, a standby pressure-boosting pump and a water storage tank, wherein the main pressure-boosting pump, the standby pressure-boosting pump and the water storage tank are arranged on a fixed frame, and the water storage tank is connected to a shunt pipe through a pipeline, and the shunt pipe is respectively connected to the main pressure-boosting pump and the standby pressure-boosting pump through a dual-channel structure with a shunt valve, and the main pressure-boosting pump and the standby pressure-boosting pump are respectively connected to the fire-fighting pipe through a first pressure-boosting pipe and a second pressure-boosting pipe, a recovery box is installed on the fixed frame, and the recovery box is connected to the first pressure-boosting pipe through a bottom pipe, and the first pressure-boosting pipe is connected to the water storage tank. A one-way valve is installed, and a reflux valve is installed on the bottom pipe, a top cover is assembled on the recovery box, and a recovery head is installed on the top cover through a quick-release structure, the recovery head is connected to the spare pressure-stabilizing pump through a hose, and the spare pressure-stabilizing pump is connected to the water storage tank through a recovery pipe, a first solenoid valve and a second solenoid valve are installed on the hose and the recovery pipe respectively, and a filter head is connected to the recovery head through a rotary pipe, and the filter head is located on a base at the bottom of the recovery box, a rotating magnetic control structure is installed on the base, and the filter head is driven to rotate on the base through the magnetic control structure, and a brush plate is installed in the recovery box, and the brush plate is located on the moving path of the filter head.

[0006] Preferably, the main pressure-stabilizing pump and the backup pressure-stabilizing pump are arranged side by side at the front of the fixed frame, and the water storage tank is arranged at the rear of the fixed frame, and the diversion pipe is installed in the middle of the fixed frame, and the water storage tank is connected to the diversion pipe through the water outlet pipe and the diversion pipe at the bottom.

[0007] Preferably, the first water inlet pipe and the second water inlet pipe are respectively connected on both sides of the diverter pipe, and the first water inlet pipe is connected to the main pressure-stabilizing pump, and the second water inlet pipe is connected to the backup pressure-stabilizing pump, and the first diverter valve and the second diverter valve are respectively provided at the joints of the diverter pipe with the first water inlet pipe and the second water inlet pipe.

[0008] Preferably, an additional seat is provided at the front of the fixing frame, and the recovery box is mounted on the additional seat by bolts, the bottom pipe is vertically connected to the bottom of the first pressurized pipe, and the bottom pipe is assembled on the top cover.

[0009] Preferably, a card seat is provided on the top cover, and a spring rod is slidably installed on the card seat, the end of the spring rod is connected to a pull plate, and a card block is provided on the recovery head to be connected to the card seat, a socket is provided on the card block, and the spring rod is connected in the socket.

[0010] Preferably, the hose and the recovery pipe are both connected to the pump chamber of the standby pressure-stabilizing pump, and the hose and the recovery pipe can be closed by the first solenoid valve and the second solenoid valve.

[0011] Preferably, the rotary tube is connected to the bottom surface of the recovery head, and the filter head is installed at the bottom end of the rotary tube. A magnetic slide is provided on the filter head, and the magnetic slide is limitedly rotatably installed on the base.

[0012] Preferably, a turntable is rotatably mounted on the bottom of the base, and the turntable is rotationally driven by a driving device, and a magnetic block is arranged on the edge of the turntable.

[0013] Preferably, the brush plate is fixedly mounted on the inner wall of the recovery box, and bristles are provided on the brush plate to clean the filter head when the filter head passes through.

[0014] A sensing system for an external pressurizing device for a fire-fighting pipe in a building, the sensing system comprising a pressure sensor module, a flow sensor module, a temperature sensor module, a smoke sensor module, a control unit, a communication module, a status indication module and a valve control module; the pressure sensor module is used to monitor the water pressure in the fire-fighting pipe; the flow sensor module is used to monitor the water flow rate and flow rate; the temperature sensor module is used to detect the ambient temperature and the water temperature in the pipe; the smoke sensor module is used to detect the generation of smoke in the building; the control unit is used to integrate and process sensor data; the communication module is used for data transmission and system integration; the status indication module is used to display the system operation status in real time; the valve control module is used to control the opening and closing of each valve on the external pressurizing device.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The external pressure-boosting device of the present invention can stabilize the water pressure in the fire-fighting pipe at a set value by supplementing the water supply and increasing the pressure when the water supply is insufficient, so as to meet the needs of the fire-fighting system. The external pressure-boosting device is mainly composed of a main pressure-stabilizing pump, a backup pressure-stabilizing pump and a water storage tank. Both the main pressure-stabilizing pump and the backup pressure-stabilizing pump can perform stable pressure-boosting. The pressure-boosting device of the present invention can achieve more precise pressure control by first over-pressurizing and then releasing the pressure. The pressure release is controlled by the recovery tank. When the main pressure-stabilizing pump increases the pressure in the fire-fighting pipe to exceed the set pressure, the return valve is opened to allow the water in the fire-fighting pipe to flow from the bottom pipe into the recovery tank, thereby ensuring that the fire-fighting pipe maintains a stable water pressure until a fire occurs.

[0016] 2. The present invention takes into account that the water quality in the fire-fighting pipeline is difficult to control and that the recovery box and the water storage tank may be easily contaminated during reflux. The recovery box is installed with an assembled structure. At the same time, after the recovery box has been used for a long time, the water therein can be recovered into the water storage tank by a spare pressure-stabilizing pump. The water in the recovery box is sent into the water storage tank through a hose and a recovery pipe by the spare pressure-stabilizing pump. The hose is connected to the recovery head, and the recovery head is connected to the recovery box through a rotary pipe and a filter head. The water can circulate after passing through the filter head to avoid impurities contaminating the water storage tank and the pipeline, thereby preventing the pipeline from being blocked.

[0017] 3. The filter head of the present invention adopts a rotating structure. The magnetic block is driven to rotate by a turntable. The generated magnetic force acts on the magnetic slide seat, driving the filter head to rotate accordingly, so that it can extract water in the recovery box more effectively. When the filter head rotates and passes through the brush plate, it can be cleaned by the brush plate to avoid clogging of the filter head. The recovery head is also installed with a quick-release structure. If necessary, the recovery head can be quickly disassembled to make it more convenient to clean the filter head. BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 It is the first schematic diagram of the overall structure of the present invention.

[0018] Figure 2 This is a second schematic diagram of the overall structure of the present invention.

[0019] Figure 3 It is a first schematic diagram of the dual-pressure-stabilized pump structure of the present invention.

[0020] Figure 4 This is a second schematic diagram of the dual-pressure-stabilized pump structure of the present invention.

[0021] Figure 5 It is a top schematic diagram of the recycling box structure of the present invention.

[0022] Figure 6 It is a bottom schematic diagram of the recycling box structure of the present invention.

[0023] Figure 7 It is a schematic diagram of the first pressurized pipe structure of the present invention.

[0024] Figure 8 It is an internal schematic diagram of the recycling box structure of the present invention.

[0025] Fig. 9 It is a schematic diagram of the installation of the recovery head structure of the present invention.

[0026] Fig.10 FIG. 4 is a block diagram of the sensing system of the present invention.

[0027] In the figure: 1. main pressure-stabilizing pump; 2. standby pressure-stabilizing pump; 3. water storage tank; 4. water outlet pipe; 5. diverter pipe; 6. first water inlet pipe; 7. second water inlet pipe; 8. first pressure pipe; 9. second pressure pipe; 10. first diverter valve; 11. second diverter valve; 12. additional seat; 13. recovery box; 14. bottom pipe; 15. one-way valve; 16. reflux valve; 17. top cover; 18. recovery head; 19. hose; 20. recovery pipe; 21. first solenoid valve; 22. second solenoid valve; 23. rotary pipe; 24. filter head; 25. base; 26. turntable; 27. magnet; 28. magnetic slide seat; 29. ​​brush plate; 30. block; 31. socket; 32. seat; 33. spring plug rod; 34. pull plate. DETAILED DESCRIPTION

[0028] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment. It should be noted that the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0029] See also Figures 1 to 10 The present invention provides a technical solution: an external pressure boosting device for fire protection pipes in buildings, comprising a main pressure-stabilizing pump 1, a standby pressure-stabilizing pump 2 and a water storage tank 3, the main pressure-stabilizing pump 1, the standby pressure-stabilizing pump 2 and the water storage tank 3 are arranged on a fixed frame, and the water storage tank 3 is connected to a diverter pipe 5 through a pipeline, the diverter pipe 5 is respectively connected to the main pressure-stabilizing pump 1 and the standby pressure-stabilizing pump 2 through a dual-channel structure with a diverter valve, and the main pressure-stabilizing pump 1 and the standby pressure-stabilizing pump 2 are respectively connected to the fire protection pipe through a first pressure boosting pipe 8 and a second pressure boosting pipe 9, a recovery box 13 is installed on the fixed frame, and the recovery box 13 is connected to the first pressure boosting pipe 8 through a bottom pipe 14, a one-way valve 15 is installed on the first pressure boosting pipe 8, and a reflux valve 16 is installed on the bottom pipe 14 Valve 16, the recovery box 13 is equipped with a top cover 17, and a recovery head 18 is installed on the top cover 17 through a quick-release structure, the recovery head 18 is connected to the standby pressure-stabilizing pump 2 through a hose 19, and the standby pressure-stabilizing pump 2 is connected to the water storage tank 3 through a recovery pipe 20, the hose 19 and the recovery pipe 20 are respectively installed with a first solenoid valve 21 and a second solenoid valve 22, and the recovery head 18 is connected with a filter head 24 through a rotary pipe 23, and the filter head 24 is located on a base 25 at the bottom of the recovery box 13, and a rotating magnetic control structure is installed on the base 25, and the filter head 24 is driven to rotate on the base 25 by the magnetic control structure, and a brush plate 29 is installed in the recovery box 13, and the brush plate 29 is located on the moving path of the filter head 24.

[0030] The main pressure-stabilizing pump 1 and the backup pressure-stabilizing pump 2 are arranged side by side at the front of the fixed frame, and the water storage tank 3 is arranged at the rear of the fixed frame, and the diverter pipe 5 is installed in the middle of the fixed frame, and the water storage tank 3 is connected to the diverter pipe 5 through the water outlet pipe 4 at the bottom. The first water inlet pipe 6 and the second water inlet pipe 7 are connected to the two sides of the diverter pipe 5, respectively, and the first water inlet pipe 6 is connected to the main pressure-stabilizing pump 1, and the second water inlet pipe 7 is connected to the backup pressure-stabilizing pump 2, and the diverter pipe 5 is provided with a first diverter valve 10 and a second diverter valve 11 at the joints with the first water inlet pipe 6 and the second water inlet pipe 7, respectively.

[0031] The external pressure boosting device of the present invention can stabilize the water pressure in the fire-fighting pipe at a set value by supplementing the water supply and boosting the pressure when the water supply is insufficient, so as to meet the needs of the fire-fighting system. The external pressure boosting device is mainly composed of a main pressure-stabilizing pump 1, a backup pressure-stabilizing pump 2 and a water storage tank 3. Under normal circumstances, when the fire-fighting pipe is under-pressure, the main pressure-stabilizing pump 1 works and the first diverter valve 10 is opened, so that the water in the water storage tank 3 enters the diverter pipe 5 from the water outlet pipe 4, and then enters the main pressure-stabilizing pump 1 from the first water inlet pipe 6. The main pressure-stabilizing pump 1 is used to send water into the fire-fighting pipe through the first pressure-boosting pipe 8 for pressure replenishment. When a problem occurs with the main pressure-stabilizing pump 1, the backup pressure-stabilizing pump 2 can work to allow water to enter the fire-fighting pipe from the water storage tank 3, the water outlet pipe 4, the diverter pipe 5, the second water inlet pipe 7, the backup pressure-stabilizing pump 2, and the second pressure-boosting pipe 9. At this time, the first diverter valve 10 is closed, the second diverter valve 11 is opened, and the first solenoid valve 21 and the second solenoid valve 22 are both closed.

[0032] The front part of the fixing frame is provided with an additional seat 12, and the recovery box 13 is installed on the additional seat 12 by bolts, the bottom pipe 14 is vertically connected to the bottom of the first pressurized pipe 8, and the bottom pipe 14 is assembled on the top cover 17. The top cover 17 is provided with a card seat 32, and a spring plug rod 33 is slidably installed on the card seat 32, and the end of the spring plug rod 33 is connected to a pull plate 34, and a card block 30 is provided on the recovery head 18 to connect with the card seat 32, and a plug hole 31 is provided on the card block 30, and the spring plug rod 33 is connected in the plug hole 31.

[0033] In order to solve the pressurization error caused by the insufficient working accuracy of the main pressure-stabilizing pump 1, more accurate pressure control can be achieved by first over-pressurizing and then releasing the pressure. The pressure release is mainly controlled by the recovery tank 13. When the main pressure-stabilizing pump 1 increases the pressure in the fire-fighting pipe to exceed the set pressure, the reflux valve 16 is opened to allow the water in the fire-fighting pipe to flow from the bottom pipe 14 into the recovery tank 13, ensuring that the fire-fighting pipe maintains a stable water pressure until a fire occurs. Considering that the water quality in the fire-fighting pipe is difficult to control, the recovery tank 13 and the water storage tank 3 are easily contaminated during reflux. The recovery tank 13 is installed on the additional seat 12 using an assembled structure, and the recovery tank 13 can be disassembled for cleaning when necessary.

[0034] The hose 19 and the recovery pipe 20 are both connected to the pump chamber of the standby pressure-stabilizing pump 2, and the hose 19 and the recovery pipe 20 can be closed by the first solenoid valve 21 and the second solenoid valve 22. The rotary pipe 23 is connected to the bottom surface of the recovery head 18, and the filter head 24 is installed at the bottom end of the rotary pipe 23. A magnetic slide 28 is provided on the filter head 24, and the magnetic slide 28 is limited and rotatably installed on the base 25. The brush plate 29 is fixedly installed on the inner wall of the recovery box 13, and the brush plate 29 is provided with bristles to clean the filter head 24 when the filter head 24 passes. A turntable 26 is rotatably installed at the bottom of the base 25, and the turntable 26 is driven to rotate by a driving device, and a magnetic block 27 is provided on the edge of the turntable 26.

[0035] After the recovery box 13 has been used for a long time, the water therein can be recovered into the water storage tank 3 by the standby pressure-stabilizing pump 2. When the second diverter valve 11 is closed and the second pressurizing pipe 9 is sealed, the first solenoid valve 21 and the second solenoid valve 22 are opened, and the water in the recovery box 13 is sent into the water storage tank 3 through the hose 19 and the recovery pipe 20 by the standby pressure-stabilizing pump 2, wherein the hose 19 is connected to the recovery head 18, and the recovery head 18 is connected to the recovery box 13 through the rotary pipe 23 and the filter head 24. The water can flow after passing through the filter head 24 to avoid impurities contaminating the water storage tank 3 and the pipeline, causing the problem of pipeline blockage. The filter head 24 of the present invention adopts a rotating structure, and the magnetic block 27 is driven to rotate by the turntable 26. The generated magnetic force acts on the magnetic slide seat 28, driving the filter head 24 to rotate accordingly, so that it can more effectively extract the water in the recovery box 13, and the filter head 24 can be cleaned by the brush plate 29 when it rotates through the brush plate 29 to avoid the filter head 24 being blocked.

[0036] Furthermore, the recovery head 18 is installed with a quick-release structure. When necessary, the recovery head 18 can be quickly disassembled. The spring rod 33 is pulled out of the holder 32 through the pull plate 34 and separated from the block 30. The recovery head 18 can be pulled out to more conveniently clean the filter head 24.

[0037] A sensing system for an external pressurizing device of a fire protection pipe in a building, the sensing system comprising a pressure sensor module, a flow sensor module, a temperature sensor module, a smoke sensor module, a control unit, a communication module, a status indication module and a valve control module; The pressure sensor module is used to monitor the water pressure in the fire protection pipe. This module detects the water pressure in the pipe in real time to ensure that the system can provide sufficient pressure to deal with the fire when needed.

[0038] The flow sensor module is used to monitor the water flow rate and flow rate. The module can monitor the water flow in the fire-fighting pipe in real time to ensure that the required water source and flow rate can be provided when extinguishing a fire.

[0039] The temperature sensor module is used to detect the ambient temperature and the water temperature in the pipe. This module detects changes in the surrounding environment and the water temperature in the pipe, and can respond promptly to sudden fires.

[0040] The smoke sensor module is used to detect the generation of smoke in buildings. This module can provide early warning when a fire occurs and promptly feedback changes in smoke concentration to the system.

[0041] The control unit is used to integrate and process sensor data. This module is responsible for receiving and analyzing the data from each sensor and controlling the start and stop of the pressurizing device and valve according to the set conditions.

[0042] Communication module, used for data transmission and system integration, sends sensor monitoring data to the central control system, ensuring effective communication with the building management system or fire control center.

[0043] The status indication module is used to display the system operation status in real time. This module displays the key indicators of the system (such as water pressure, flow, temperature, etc.) through visual indication to facilitate maintenance personnel monitoring.

[0044] The valve control module is used to control the opening and closing of the water source valve. The module can automatically control the opening and closing of the valve according to the instructions of the control unit to optimize the pressurization and utilization of the water source and ensure sufficient water pressure in the fire-fighting pipe.

[0045] When the external pressure-boosting device of the present invention is in use: first, when the water supply is insufficient, the external pressure-boosting device can stabilize the water pressure in the fire-fighting pipe at a set value by supplementing the water supply and increasing the pressure to meet the needs of the fire-fighting system. The external pressure-boosting device is mainly composed of a main pressure-stabilizing pump 1, a standby pressure-stabilizing pump 2 and a water storage tank 3. Generally, when the fire-fighting pipe is under-pressure, the main pressure-stabilizing pump 1 works and the first diverter valve 10 is opened to allow the water in the water storage tank 3 to enter the diverter pipe 5 from the water outlet pipe 4, and then enter the main pressure-stabilizing pump 1 from the first water inlet pipe 6. The main pressure-stabilizing pump 1 is used to send water into the fire-fighting pipe through the first pressure-boosting pipe 8 for pressure replenishment. When there is a problem with the main pressure-stabilizing pump 1, the standby pressure-stabilizing pump 2 can work to allow the water to flow into the fire-fighting pipe. The water enters the fire-fighting pipeline from the water storage tank 3, the water outlet pipe 4, the diversion pipe 5, the second water inlet pipe 7, the standby pressure-stabilizing pump 2, and the second pressurizing pipe 9. At this time, the first diversion valve 10 is closed, the second diversion valve 11 is opened, and the first solenoid valve 21 and the second solenoid valve 22 are both closed. A more precise pressure control is achieved by first over-pressurizing and then releasing the pressure. The pressure release is mainly controlled by the recovery tank 13. When the main pressure-stabilizing pump 1 increases the pressure in the fire-fighting pipeline to exceed the set pressure, the reflux valve 16 is opened to allow the water in the fire-fighting pipeline to flow from the bottom pipe 14 into the recovery tank 13, ensuring that the fire-fighting pipeline maintains a stable water pressure until a fire occurs. Considering that the water quality in the fire-fighting pipeline is not easy to control, it is easy to cause the recovery tank to reflux. 13. The water storage tank 3 is contaminated. The recovery tank 13 is installed on the additional seat 12 with an assembled structure. The recovery tank 13 can be disassembled for cleaning when necessary. After the recovery tank 13 has been used for a long time, the water in it can be recovered to the water storage tank 3 by the spare pressure-stabilizing pump 2. When the second diverter valve 11 is closed and the second pressurizing pipe 9 is closed, the first solenoid valve 21 and the second solenoid valve 22 are opened, and the water in the recovery tank 13 is sent to the water storage tank 3 through the hose 19 and the recovery pipe 20 through the spare pressure-stabilizing pump 2. Among them, the hose 19 is connected to the recovery head 18, and the recovery head 18 is connected to the recovery tank 13 through the rotary pipe 23 and the filter head 24. The water can be circulated after passing through the filter head 24 , to avoid impurities contaminating the water storage tank 3 and the pipeline, causing the problem of pipeline blockage, and the filter head 24 of the present invention adopts a rotating structure, and the turntable 26 drives the magnetic block 27 to rotate, and the generated magnetic force acts on the magnetic slide seat 28, driving the filter head 24 to rotate accordingly, so that it can more effectively extract the water in the recovery box 13, and the filter head 24 can be cleaned by the brush plate 29 when it rotates through the brush plate 29, avoiding the filter head 24 from being blocked, and the recovery head 18 is installed with a quick-release structure. If necessary, the recovery head 18 can be quickly disassembled, and the spring plug rod 33 can be pulled out from the holder 32 to disengage from the block 30. The recovery head 18 can be pulled out to more conveniently clean the filter head 24.

[0046] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An external pressure boosting device for fire protection pipes in buildings, comprising a main pressure-stabilizing pump (1), a backup pressure-stabilizing pump (2) and a water storage tank (3), characterized in that: The main pressure-stabilizing pump (1), the standby pressure-stabilizing pump (2) and the water storage tank (3) are arranged on a fixed frame, and the water storage tank (3) is connected to the diverter pipe (5) through a pipeline. The diverter pipe (5) is respectively connected to the main pressure-stabilizing pump (1) and the standby pressure-stabilizing pump (2) through a dual-channel structure with a diverter valve, and the main pressure-stabilizing pump (1) and the standby pressure-stabilizing pump (2) are respectively connected to the fire-fighting pipeline through a first pressurizing pipe (8) and a second pressurizing pipe (9). A recovery box (13) is installed on the fixed frame, and the recovery box (13) is connected to the first pressurizing pipe (8) through a bottom pipe (14). A one-way valve (15) is installed on the first pressurizing pipe (8), and a reflux valve (16) is installed on the bottom pipe (14). A top cover (17) is installed on the recovery box (13), and a valve (17) is installed on the top cover (17). The quick-disassembly structure is provided with a recovery head (18), the recovery head (18) being connected to a standby pressure-stabilizing pump (2) via a hose (19), and the standby pressure-stabilizing pump (2) being connected to a water storage tank (3) via a recovery pipe (20), the hose (19) and the recovery pipe (20) being provided with a first solenoid valve (21) and a second solenoid valve (22) respectively, the recovery head (18) being connected to a filter head (24) via a rotary pipe (23), and the filter head (24) being located on a base (25) at the bottom of the recovery box (13), the base (25) being provided with a rotating magnetic control structure, and the filter head (24) being driven to rotate on the base (25), and a brush plate (29) being provided in the recovery box (13), and the brush plate (29) being located on a moving path of the filter head (24).

2. The external pressurizing device for fire fighting pipes in buildings according to claim 1, characterized in that: The main pressure-stabilizing pump (1) and the backup pressure-stabilizing pump (2) are arranged side by side at the front of the fixed frame, the water storage tank (3) is arranged at the rear of the fixed frame, and the diversion pipe (5) is installed in the middle of the fixed frame, and the water storage tank (3) is connected to the diversion pipe (5) via a water outlet pipe (4) at the bottom.

3. The external pressurizing device for fire fighting pipes in buildings according to claim 1, characterized in that: The two sides of the diverter pipe (5) are respectively connected to a first water inlet pipe (6) and a second water inlet pipe (7), and the first water inlet pipe (6) is connected to a main pressure-stabilizing pump (1), and the second water inlet pipe (7) is connected to a standby pressure-stabilizing pump (2). The diverter pipe (5) is respectively provided with a first diverter valve (10) and a second diverter valve (11) at the joints with the first water inlet pipe (6) and the second water inlet pipe (7).

4. The external pressurizing device for fire fighting pipes in buildings according to claim 1, characterized in that: An additional seat (12) is provided at the front of the fixing frame, and the recovery box (13) is mounted on the additional seat (12) by means of bolts. The bottom pipe (14) is vertically connected to the bottom of the first pressurizing pipe (8), and the bottom pipe (14) is assembled on the top cover (17).

5. The external pressurizing device for fire fighting pipes in buildings according to claim 1, characterized in that: The top cover (17) is provided with a card seat (32), and a spring insertion rod (33) is slidably mounted on the card seat (32), the end of the spring insertion rod (33) is connected to a pull plate (34), and the recovery head (18) is provided with a card block (30) connected to the card seat (32), the card block (30) is provided with a socket (31), and the spring insertion rod (33) is connected to the socket (31).

6. The external pressurizing device for fire fighting pipes in buildings according to claim 1, characterized in that: The hose (19) and the recovery pipe (20) are both connected to the pump chamber of the standby pressure-stabilizing pump (2), and the hose (19) and the recovery pipe (20) can be closed by a first solenoid valve (21) and a second solenoid valve (22).

7. The external pressurizing device for fire fighting pipes in buildings according to claim 1, characterized in that: The rotary tube (23) is connected to the bottom surface of the recovery head (18), and the filter head (24) is installed at the bottom end of the rotary tube (23). A magnetic slide seat (28) is provided on the filter head (24), and the magnetic slide seat (28) is installed on the base (25) in a limited rotation manner.

8. The external pressurizing device for fire fighting pipes in buildings according to claim 7, characterized in that: A turntable (26) is rotatably mounted on the bottom of the base (25), and the turntable (26) is driven to rotate by a driving device. A magnetic block (27) is provided on the edge of the turntable (26).

9. The external pressurizing device for fire fighting pipes in buildings according to claim 1, characterized in that: The brush plate (29) is fixedly mounted on the inner wall of the recovery box (13), and bristles are provided on the brush plate (29) so as to clean the filter head (24) when the filter head (24) passes through.

10. An induction system for an external pressurizing device for fire protection pipes in buildings according to any one of claims 1 to 9, characterized in that: The sensing system includes a pressure sensor module, a flow sensor module, a temperature sensor module, a smoke sensor module, a control unit, a communication module, a status indication module and a valve control module; The pressure sensor module is used to monitor the water pressure in the fire protection pipe; The flow sensor module is used to monitor water flow rate and flow rate; The temperature sensor module is used to detect the ambient temperature and the water temperature in the pipeline; The smoke sensor module is used to detect the generation of smoke in the building; The control unit is used to integrate and process sensor data; The communication module is used for data transmission and system integration; The status indication module is used to display the system operation status in real time; The valve control module is used to control the opening and closing of each valve on the external pressurizing device.

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