Elevating fire extinguishing system and method suitable for few-person on-duty transformer substation

Abstract

The invention discloses an elevating fire extinguishing system and method suitable for a few-person-on-duty transformer substation. The elevating fire extinguishing system suitable for the few-person-on-duty transformer substation comprises a water source supply module, a first compressed air foam generation module and an elevating spraying robot. The water source supply module, the first compressed air foam generation module and the elevating jet robot are configured to be in a mechanical state capable of running, the water source supply module is configured to supply water to the outside of the first compressed air foam generation module, and the first compressed air foam generation module communicates with the elevating jet robot; and the jet path of the lifting jet robot forms a composite jet field in a three-dimensional space. The device has the beneficial effects that high-pressure air foam is formed through the compressed air foam generation module and provided for the elevating jet robot, the elevating jet robot forms a composite jet field in a three-dimensional space to be accurately aligned with a core fire point at a high position, oriented and efficient covering and fire suppression are achieved for a space three-dimensional fire source, and the fire suppression efficiency is improved. And wrapping type fire extinguishing of a high-altitude ignition point in a visual angle blind area of personnel is realized.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of power equipment fire fighting, in particular to a high-rise fire extinguishing system and method suitable for a few-man substation. BACKGROUND

[0002] As the core node of the power system, the substation has been developing with the evolution of power demand and technology. The voltage level has jumped from 110 / 220kV hub, 35kV terminal mode to 1000kV / 500kV hub, 220 / 110kV terminal backbone network architecture.

[0003] Due to the complex equipment, concentrated cable distribution and sensitive surrounding environment in the substation, there are many fire risk hidden dangers. The existing substation fire fighting mainly relies on fire extinguishers, fire hydrants, oil discharge and nitrogen injection, water spray and foam spray systems.

[0004] At present, the substation fire extinguishing methods mainly include fire extinguishers, fire hydrants, oil-immersed transformer oil discharge and nitrogen injection fire extinguishing equipment, water spray fire extinguishing system and conventional foam spray fire extinguishing system. Among them, the fire extinguishers, fire hydrants, oil discharge and nitrogen injection fire extinguishing have small application range, low fire extinguishing capacity and low automation level, and can only be used for local small fire. The water spray / foam spray fire extinguishing system is relatively simple to maintain, only needs to regularly check whether the nozzle, pipeline, water pump and other equipment are normal. However, its shortcomings are that it requires professional pump sets and nozzles and is easily affected by the environment. In cold or severe cold areas, it is easy to freeze and cannot be used. At the same time, once the nozzle is damaged, the whole pressure will be lost, resulting in the failure of the fire extinguishing system.

[0005] However, the equipment in the substation is complex and diverse, and the current transformer and the reactor are particularly prominent, with the top oil storage tank height up to about 10 meters. Once a fault occurs and a fire breaks out, the top oil storage tank is easy to be blown open, exposing the internal coil and the transformer oil stored in the lower cover, forming a three-dimensional fire with high solid / liquid fire points (coil and transformer oil) and low liquid oil fire (transformer oil) around.

[0006] In emergency disposal, the rescue personnel look up from the bottom and can only see the lower half of the current transformer oil storage tank. The existing fixed fire extinguishing equipment is limited by the installation position and the jet angle, and cannot quickly and accurately deliver the fire extinguishing agent to the core fire point 10 meters high (especially the upper coil fire exposed after being blown open). It usually needs to rely on dangerous aerial work equipment to perform wrapping spraying from top to bottom, which is low in efficiency and extremely high in risk. In addition, there are dry-type air-core reactors and other equipment in the substation, which have high fire risk, and rely on personnel or existing fire fighting and rescue equipment for fire fighting, which has the same problems as above.

[0007] The information disclosed in this Background section is only for the purpose of increasing an understanding of the general background of the application and does not necessarily pertain to the work of any single inventor or group of inventors. It should not be taken as an acknowledgement or any form of suggestion that this information forms the general prior art precedents already known to a person skilled in the art. SUMMARY

[0008] The technical problem to be solved by the present application is to solve the problem of low fire extinguishing efficiency of current transformers, dry reactors and the like.

[0009] The present application solves the above technical problems by the following technical means:

[0010] The present application claims a high-lift fire extinguishing system suitable for a few-man attended substation, comprising a water supply module, a first compressed air foam generating module and a high-lift jet robot;

[0011] The water supply module, the first compressed air foam generating module and the high-lift jet robot are configured in a mechanical state capable of operation, the water supply module is configured to supply water outside the first compressed air foam generating module, the first compressed air foam generating module is in communication with the high-lift jet robot, and the high-lift jet robot forms a compound jet field in three-dimensional space.

[0012] The present application forms high-pressure air foam through the compressed air foam generating module and provides it to the high-lift jet robot, which forms a compound jet field in three-dimensional space and accurately aligns with the core fire point at a high place, realizes directional and efficient coverage and suppression of fire for spatial stereoscopic fire sources, and realizes the wrapping type fire extinguishing of the high fire point in the personnel visual angle blind area.

[0013] Preferably, the high-lift jet robot comprises a jet mechanism located at the top, the jet mechanism is provided with at least three nozzles, the jet paths of the nozzles are different in inclination angle in three-dimensional space, and a compound jet field is formed.

[0014] By changing the inclination angle of the jet path of the nozzle, a compound jet field is constructed in three-dimensional space, and directional and efficient coverage and suppression of fire for spatial stereoscopic fire sources are realized.

[0015] Preferably, the jet mechanism comprises a jet pipe welding member, at least one first jet pipe and at least one second jet pipe;

[0016] At least one first jet pipe is arranged at both ends of the jet pipe welding member, at least one second jet pipe is arranged at the middle of the jet pipe welding member, one end of the first jet pipe and the second jet pipe is in communication with the jet pipe welding member, and the other end of the first jet pipe and the second jet pipe forms a nozzle;

[0017] The first jet pipe is configured in cooperation with the axial inward inclination and the radial inclination, and the second jet pipe is inclined downward, and the downward inclination angle of the second jet pipe is different from the radial inclination angle of the first jet pipe.

[0018] Thus, the downward convergent jet flow formed by the first spray pipe at both ends and the upward jet flow generated by the second spray pipe in the middle work together to construct a composite jet flow field in three-dimensional space, achieving directional and efficient coverage and suppression of the space stereoscopic fire source.

[0019] Preferably, the downward inclination angle of the second spray pipe is α, which is the complementary angle of the included angle between the axis of the second spray pipe and the vertical line, and α satisfies the following formula:

[0020] α = arctan (h / s) × K

[0021] Wherein, h is the vertical distance from the second spray pipe to the ignition section of the object to be extinguished along the Z-axis direction; s is the distance from the allowable extinguishing position of the second spray pipe to the center of the object to be extinguished; K is the downward inclination angle correction coefficient of the second spray pipe.

[0022] Further verification of the downward inclination angle of the second spray pipe, through specific numerical formula, combines the inclination angle with the size and position of the object to be extinguished, to obtain better extinguishing effect.

[0023] Preferably, the radial inclination angle of the first spray pipe is β, which is the complementary angle of the included angle between the axis of the first spray pipe and the vertical line, and β satisfies the following formula:

[0024] β = α + 4°

[0025] Wherein, α is the downward inclination angle of the second spray pipe.

[0026] In fact, it is because the downward inclination angles between the first spray pipe and the second spray pipe are different that the coverage of the extinguishing area is realized in the longitudinal direction. Through specific numerical formula, the inclination angle is combined with the size and position of the object to be extinguished to obtain better extinguishing effect; further verification of the downward inclination angle of the second spray pipe, through specific numerical formula, combines the inclination angle with the size and position of the object to be extinguished, to obtain better extinguishing effect.

[0027] Preferably, the axial inward inclination angle of the first spray pipe is Γ, which is the included angle between the axis of the first spray pipe and the horizontal line, and Γ satisfies the following formula:

[0028] Γ = arctan (L / 2s)

[0029] Wherein, L is the distance between the first spray pipes; s is the distance from the allowable extinguishing position of the second spray pipe to the center of the object to be extinguished.

[0030] Further verify the second nozzle axial angle, through the synergistic effect of three nozzle tilts, build a composite jet field in three-dimensional space, realize directional, efficient coverage and fire suppression for space stereoscopic fire. And through specific numerical formula, combine the tilt angle with the size and position of the fire to be extinguished to obtain better fire extinguishing effect.

[0031] Preferably, the high-lifting spraying robot further comprises a crawler chassis mechanism, a telescopic leg mechanism and a lifting adjusting mechanism;

[0032] The telescopic leg mechanism is arranged at the bottom of the crawler chassis mechanism, the lifting adjusting mechanism is arranged on the crawler chassis mechanism, and the spraying mechanism is arranged at the top of the lifting adjusting mechanism.

[0033] The crawler chassis mechanism is used for adjusting the movement of the entire high-lifting spraying robot and serves as a bearing platform of the lifting adjusting mechanism; and the telescopic leg mechanism is used for adjusting the stopping support of the crawler chassis mechanism.

[0034] Preferably, the crawler chassis mechanism comprises a frame body, a rolling assembly, a rubber track, a second motor, a control box, a battery, a cover plate and an outer shell.

[0035] The rolling assembly is arranged at both sides of the bottom of the frame body, the outer side of the rolling assembly on one side is wrapped by the rubber track, the second motor, the control box and the battery are arranged in sequence on the frame body in the length direction, the battery is configured to supply power to the control box and the second motor, the control box is electrically connected with the second motor, and the driving shaft of the second motor is connected with the input end of the rolling assembly through a coupling.

[0036] The cover plate is arranged above the middle part of the frame body and covers the second motor, the control box and the battery; the outer shell is arranged on both sides of the frame body above and covers the rubber track, and the outer shell is spliced with the cover plate.

[0037] The battery is configured to supply power to the control box and the second motor, and the rolling assembly and the rubber track are further arranged to realize the movement of the crawler chassis mechanism.

[0038] Preferably, the telescopic leg mechanism comprises a telescopic arm frame, a movable frame, an electric push rod, a third motor, a telescopic pipe and an electric leg.

[0039] The telescopic arm frame has a transverse section in the shape of a "U" character, and the telescopic arm frame longitudinal beam is fixed to the front of the frame body along the moving direction of the crawler chassis mechanism, and the telescopic arm frame longitudinal beam is fixed at both ends along the length direction.

[0040] The electric push rod is arranged on the frame body, and the output end of the electric push rod is parallel to the length direction of the frame body.

[0041] The telescopic arm frame cross beam is in a tubular structure, the two ends of the telescopic arm frame cross beam are respectively inserted into the two ends of the movable frame, the movable frame is in a U-shaped structure, the movable frame cross beam is inserted into the telescopic arm frame cross beam, and the movable frame longitudinal beam is connected with the output end of the electric push rod.

[0042] The movable frame longitudinal beam is in a tubular structure, the two ends of the movable frame longitudinal beam extend along the length direction, the third motor is arranged at the middle part of the movable frame longitudinal beam, the two output ends of the third motor are connected with the lead screws, the lead screws are all engaged with the lead screw nuts, and the lead screw nuts are respectively connected with the end parts of the telescopic pipes inserted into the two ends of the movable frame longitudinal beam; and the two ends of the movable frame longitudinal beam and the telescopic arm frame longitudinal beam are both provided with electric support legs.

[0043] The movable frame is driven to move by the electric push rod until the movable frame is unfolded along the telescopic arm frame; then the third motor is started to drive the telescopic pipes to extend out of the movable frame, and the electric support legs support the track chassis mechanism.

[0044] Preferably, the height adjusting mechanism comprises a third adjusting assembly, a second adjusting assembly and a first adjusting assembly; and the third adjusting assembly, the second adjusting assembly, the first adjusting assembly and the spraying mechanism are sequentially connected from bottom to top.

[0045] The height adjusting mechanism can adjust the spraying height, the spraying angle and the folding of the spraying mechanism through the cooperation of the first adjusting assembly, the second adjusting assembly and the third adjusting assembly.

[0046] Preferably, the third adjusting assembly comprises a pin shaft, a bearing, a first base and a folding electric cylinder, the first base is arranged on the cover plate, the first base is connected with the bottom of the second adjusting assembly through the pin shaft, and the second adjusting assembly is driven to flip by the folding electric cylinder.

[0047] The second adjusting assembly is driven to flip by the folding electric cylinder, so that the second adjusting assembly rotates around the pin shaft to realize folding.

[0048] Preferably, the second adjusting assembly comprises a lifting rod, a second fixed frame, a first motor and a mounting plate, the mounting plate is connected with the first base through the pin shaft, the first motor and the second fixed frame are arranged on the mounting plate, the lifting rod is arranged at the bottom end of the second fixed frame, the top end of the lifting rod is the output end of the lifting rod, and the first motor is configured to provide power for the lifting rod.

[0049] The lifting rod is driven to stretch and retract by the first motor to realize height adjustment.

[0050] Preferably, the first adjusting assembly comprises a rotating holder, a rotating joint and a first fixed frame. The first fixed frame is arranged at the output end of the lifting rod, the rotating holder is arranged on the first fixed frame, and the rotating holder is connected with the spraying mechanism through the rotating joint.

[0051] The horizontal rotation is adjusted by rotating the rotating holder, and the rotating holder is combined with the rotating joint, so that the spraying mechanism can rotate horizontally relative to the first fixed frame, and the pipeline connection of the spraying mechanism is not affected.

[0052] Preferably, the first compressed air foam generating module comprises an electric chassis assembly, an upper assembly, a liquid tank assembly, a water supply assembly, a foam liquid supply assembly, a gas supply assembly and a gas-liquid mixing assembly.

[0053] The electric chassis assembly is arranged above the upper assembly, and the upper assembly and the electric chassis assembly jointly enclose a space, in which the liquid tank assembly is arranged. The liquid tank assembly is provided with a first output end and a second output end. The first output end is connected to the input end of the water supply assembly, and the second output end is connected to the input end of the foam liquid supply assembly. The output ends of the water supply assembly, the foam liquid supply assembly and the gas supply assembly are connected to the input end of the gas-liquid mixing assembly.

[0054] The high-pressure air foam is formed by the liquid tank assembly, the water supply assembly, the foam liquid supply assembly, the gas supply assembly and the gas-liquid mixing assembly, and the electric chassis assembly is used to move the formed high-pressure air foam to the vicinity of the elevated spraying robot to provide high-pressure air foam for the elevated spraying robot.

[0055] Preferably, the electric chassis assembly comprises a first frame platform, a steering unit, a driving unit, a power module and a brake unit.

[0056] In the moving direction of the electric chassis assembly, the steering unit and the driving unit are sequentially arranged on the bottom of the first frame platform from front to back, and the brake unit is arranged on one side of the bottom of the first frame platform. The steering unit is arranged on the front side of the first frame platform. The power module is arranged on the first frame platform, and is configured to supply power to the electric chassis assembly, the water supply assembly, the foam liquid supply assembly, the gas supply assembly and the control module.

[0057] The brake unit refers to the part responsible for generating braking force in the braking system. The brake unit is welded on the bottom of the first frame platform, and the connecting rod of the brake unit is connected to the brake pull rod of the driving unit.

[0058] Preferably, the upper assembly comprises a front cover, an intermediate cover and a tail cover. In the conveying direction of the electric chassis assembly, the front cover, the intermediate cover and the tail cover are sequentially arranged on the electric chassis assembly to form a space.

[0059] The space is used to protect the liquid tank assembly.

[0060] Preferably, the liquid tank assembly comprises a water tank, a water inlet, a water outlet, a first breathing valve, a foam liquid tank, a liquid inlet, a foam liquid outlet pipe, a second breathing valve, a first liquid level sensor, a second liquid level sensor and a liquid level digital display.

[0061] The water tank is provided with a water inlet and a water outlet; a foam liquid tank is arranged on one side of the water tank, the foam liquid tank is provided with a liquid inlet, a foam liquid outlet pipe is connected to one side of the foam liquid tank, and the foam liquid tank is provided with a second breathing valve;

[0062] The water tank is provided with a first liquid level sensor and a liquid level digital display meter, and the foam liquid tank is provided with a second liquid level sensor, both of which are electrically connected to the liquid level digital display meter.

[0063] The foam liquid tank provides foam liquid, the water tank provides water, the liquid level digital display meter is a digital instrument for displaying the liquid level height, and the liquid level digital display meter is connected to the liquid level sensor to receive a liquid level signal and convert it into a digital form for display on a screen.

[0064] Preferably, the water supply assembly includes a first water inlet pipe, an electric three-way selector valve, a fire pump set, a water outlet pipe, a first check valve, a second water inlet pipe, a filter, a third water inlet pipe, and a first fire quick coupling;

[0065] One end of the first water inlet pipe is connected to the first output end, and the other end of the first water inlet pipe is connected to the first inlet end of the electric three-way selector valve; one end of the water outlet pipe is connected to the outlet end of the electric three-way selector valve, and along the water conveying direction, the fire pump set and the first check valve are arranged on the water outlet pipe in sequence, the other end of the water outlet pipe is connected to the first check valve, and the first check valve is connected to the gas-liquid mixing assembly; one end of the second water inlet pipe is connected to the second inlet end of the electric three-way selector valve, the other end of the second water inlet pipe is connected to the outlet end of the filter, one end of the third water inlet pipe is connected to the inlet end of the filter, and the other end of the third water inlet pipe is connected to the first fire quick coupling.

[0066] The water supply assembly has two ways to supply water, one way is to convey water in the water tank to the gas-liquid mixing assembly, specifically, the fire pump set is started, and the water in the water tank enters the gas-liquid mixing assembly through the water outlet pipe.

[0067] The other way is to convey external water supply to the gas-liquid mixing assembly, specifically, the first fire quick coupling can be connected to the water source supply module through a water suction pipe, so that the water in the water source supply module enters the gas-liquid mixing assembly through the third water inlet pipe, the second water inlet pipe, and the water outlet pipe in sequence.

[0068] Preferably, the foam liquid supply assembly includes a foam liquid pipeline, a self-suction foam liquid pump, and a second check valve; the foam liquid outlet pipe is connected to the gas-liquid mixing assembly through the foam liquid pipeline, and along the foam liquid conveying direction, the foam liquid pipeline is sequentially provided with the self-suction foam liquid pump and the second check valve.

[0069] The foam in the foam liquid tank is conveyed to the gas-liquid mixing assembly through the foam liquid pipeline.

[0070] Preferably, the gas supply assembly includes a piston air compressor, a valve block, a safety valve, a third check valve, a flow sensor, and a gas conveying pipeline.

[0071] The piston air compressor is connected with the gas-liquid mixing assembly through a gas conveying pipeline, and the gas conveying pipeline is sequentially provided with a valve block, a third one-way valve and a flow sensor in the gas conveying direction.

[0072] The compressed air generated by the piston air compressor is controlled through the safety valve on the valve block, and then is safely conveyed to the gas-liquid mixing assembly through the flow sensor.

[0073] Preferably, the gas-liquid mixing assembly comprises a turbulence-free fourth water inlet pipe, a tee joint, a foam liquid inlet pipe, a mixing chamber, a high-pressure air inlet pipe, a compressed air foam liquid outlet pipe and a second fire-fighting quick connector.

[0074] The first one-way valve is connected with one end of the fourth water inlet pipe, the other end of the fourth water inlet pipe is connected with the tee joint, the lower interface of the tee joint is connected with the foam liquid pipeline, the left interface of the tee joint is connected with the mixing chamber, the mixing chamber is connected with the gas conveying pipeline through the high-pressure air inlet pipe, the outlet of the mixing chamber is connected with one end of the compressed air foam liquid outlet pipe, a control module is arranged on the compressed air foam liquid outlet pipe, and the other end of the compressed air foam liquid outlet pipe is connected with the second fire-fighting quick connector.

[0075] The gas-liquid mixing assembly is used for mixing compressed air, foam liquid and water; the water enters the tee joint through the fourth water inlet pipe, the foam liquid enters the tee joint through the foam liquid pipeline, the foam liquid and the water are mixed into the mixing chamber, the compressed air enters the mixing chamber through the gas conveying pipeline and the high-pressure air inlet pipe in sequence, and the three are mixed to form compressed air foam, and the compressed air foam reaches the second fire-fighting quick connector through the compressed air foam liquid outlet pipe.

[0076] Preferably, the water supply module comprises an electric forklift, a fire-fighting water module and a water suction pipe, the electric forklift is a forklift driven by electric energy, usually uses a storage battery as an energy source, and is used for driving the water supply module to move, the water supply module is arranged on the electric forklift, and the water suction pipe is arranged on the water supply module.

[0077] When the first compressed air foam generating module needs external water supply, the electric forklift is started to move to a corresponding position, and the water suction pipe is communicated with the external water supply input end of the first compressed air foam generating module, so as to supply water for the first compressed air foam generating module.

[0078] The application also claims to protect a high-lifting fire extinguishing method suitable for a few-man attended substation by using a high-lifting fire extinguishing system suitable for a few-man attended substation, comprising:

[0079] Confirming the height of the fire extinguishing position;

[0080] Sequentially connecting the water supply module, the first compressed air foam generating module and the high-lifting jet robot;

[0081] Drive the first compressed air foam generating module and control the elevated jet robot to move to the position allowing fire extinguishing, align the position, and spray fire extinguishing. BRIEF DESCRIPTION OF DRAWINGS

[0082] Figure 1 is a structural schematic diagram of the elevated fire extinguishing system suitable for the less attended substation in embodiment one of the present application;

[0083] Figure 2 is a structural schematic diagram of the water supply module in embodiment one of the present application;

[0084] Figure 3 is a structural schematic diagram of the compressed air foam generating module in embodiment one of the present application;

[0085] Figure 4 is a structural schematic diagram of the electric chassis assembly in embodiment one of the present application;

[0086] Figure 5 is a structural schematic diagram of the steering unit in embodiment one of the present application;

[0087] Figure 6 is a top view of the compressed air foam generating module removing the upper assembly in embodiment one of the present application;

[0088] Figure 7 is a structural schematic diagram of the liquid tank assembly in embodiment one of the present application;

[0089] Figure 8 is a structural schematic diagram of the water supply assembly in embodiment one of the present application;

[0090] Figure 9 is a structural schematic diagram of the foam liquid supply assembly in embodiment one of the present application;

[0091] Figure 10 is a structural schematic diagram of the gas supply assembly in embodiment one of the present application;

[0092] Figure 11 is a structural schematic diagram of the gas-liquid mixing assembly in embodiment one of the present application;

[0093] Figure 12 is a structural schematic diagram of the extension of the second adjusting assembly of the elevated jet robot in embodiment one of the present application;

[0094] Figure 13 is a structural schematic diagram of the retraction of the second adjusting assembly of the elevated jet robot in embodiment one of the present application;

[0095] Figure 14 is a structural schematic diagram of the track chassis mechanism removing the cover plate and the shell in embodiment one of the present application;

[0096] Figure 15Figure 1 is a structural schematic diagram of a track chassis mechanism in an embodiment of the present application;

[0097] Figure 16 Figure 2 is a structural schematic diagram of a height-lifting and spraying mechanism in an embodiment of the present application;

[0098] Figure 17 Figure 3 is a structural schematic diagram of a first adjusting assembly and a spraying mechanism in an embodiment of the present application;

[0099] Figure 18 Figure 4 is a structural schematic diagram of a spraying mechanism in an embodiment of the present application;

[0100] Figure 19 Figure 5 is a side view of a coordinate system established by a spraying mechanism in an embodiment of the present application;

[0101] Figure 20 Figure 6 is a top view of a coordinate system established by a spraying mechanism in an embodiment of the present application;

[0102] Figure 21 Figure 7 is a side view of a coordinate system established by a spraying mechanism in an embodiment of the present application;

[0103] Figure 22 Figure 8 is a structural schematic diagram of a breaking mechanism in an embodiment of the present application;

[0104] Figure 23 Figure 9 is a schematic diagram of a height-lifting and fire extinguishing method suitable for a few-man attended substation in an embodiment of the present application;

[0105] 1, water supply module; 10, electric forklift; 11, fire-fighting water module; 12, water suction pipe;

[0106] 2, first compressed air foam generation module;

[0107] 201, first vehicle frame platform;

[0108] 202, steering unit; 2020, steering bridge assembly; 2021, steering column; 2022, steering handle;

[0109] 203, driving unit; 204, power module; 205, brake unit;

[0110] 210, front cover; 211, middle cover; 212, tail cover;

[0111] 22, liquid tank assembly; 220, water tank; 221, water filling port; 222, water outlet; 223, first breathing valve; 224, foam tank; 225, liquid filling port; 226, foam outlet pipe; 227, second breathing valve; 228, first liquid level sensor; 229, second liquid level sensor;

[0112] 23, water supply assembly; 230, first water inlet pipe; 231, first electric three-way selector valve; 232, fire pump group; 233, water outlet pipe; 234, first check valve; 235, second water inlet pipe; 236, filter; 237, third water inlet pipe; 238, first fire hydrant;

[0113] 24, foam liquid supply assembly; 240, foam liquid pipe; 241, self-suction foam liquid pump; 242, second check valve;

[0114] 25, gas supply assembly; 250, piston air compressor; 251, valve block; 252, safety valve; 253, third check valve; 254, flow sensor; 255, gas delivery pipe;

[0115] 26, gas-liquid mixing assembly; 260, turbulence-free fourth water inlet pipe; 261, three-way joint; 262, foam liquid inlet pipe; 263, mixing chamber; 264, high-pressure air inlet pipe; 265, compressed air foam liquid outlet pipe; 266, second fire hydrant;

[0116] 3, elevated spray robot;

[0117] 301, vehicle frame body; 302, rolling assembly; 303, rubber track; 304, second motor; 305, control box; 306, battery; 307, cover plate; 308, housing;

[0118] 310, telescopic arm frame; 311, movable frame; 312, electric push rod; 313, third motor; 314, telescopic pipe; 315, electric support leg;

[0119] 3201, pin shaft; 3202, bearing; 3203, first base; 3204, lodging cylinder;

[0120] 3210, lifting rod; 3211, second fixed frame; 3212, first motor; 3213, mounting plate;

[0121] 3220, rotating holder; 3221, rotating joint; 3222, first fixed frame;

[0122] 330, spray pipe welding member; 331, first spray pipe; 332, second spray pipe;

[0123] 340, second base; 341, guide fixed cylinder; 342, guide body; 343, impact motor; 344, hole opener. DETAILED DESCRIPTION

[0124] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort belong to the scope of protection of the present application.

[0125] Embodiment one

[0126] Referring to Figure 1 , the embodiment claims a high-lift fire extinguishing system suitable for a few-man attended substation, which can be moved to an allowed fire extinguishing position based on the height of the fire extinguishing position and extinguish the fire in a targeted manner.

[0127] The high-lift fire extinguishing system suitable for a few-man attended substation comprises a water supply module 1, a first compressed air foam generating module 2 and a high-lift spraying robot 3.

[0128] The water supply module 1 provides external water supply for the first compressed air foam generating module 2 to prevent the first compressed air foam generating module 2 from being insufficient in self-water supply.

[0129] Referring to Figure 2 , the water supply module 1 comprises an electric forklift 10, a fire-fighting water module 11 and a water suction pipe 12. The electric forklift 10 is a forklift driven by electric energy, usually uses a storage battery 306 as an energy source, is used to drive the water supply module 1 to move, and is provided with the water supply module 1. The water supply module 1 is provided with the water suction pipe 12, and the water suction pipe 12 is a pipe tool used for sucking or conveying liquid.

[0130] The water supply module 1 is used to provide external water supply for the first compressed air foam generating module 2 in the following process:

[0131] When the first compressed air foam generating module 2 needs external water supply, the electric forklift 10 is started to move to a corresponding position, the water suction pipe 12 is communicated with an external water supply input end of the first compressed air foam generating module 2, and water is supplied to the first compressed air foam generating module 2.

[0132] Referring to Figures 3-11 , the first compressed air foam generating module 2 is used to generate compressed air foam, specifically, the first compressed air foam generating module 2 comprises an electric chassis assembly, an upper assembly, a liquid tank assembly 22, a water supply assembly 23, a foam liquid supply assembly 24, a gas supply assembly 25 and a gas-liquid mixing assembly 26.

[0133] The electric chassis assembly is provided with an upper assembly, and the electric chassis assembly and the upper assembly jointly enclose a space. A liquid tank assembly 22 is arranged on the left side in the space. The liquid tank assembly 22 is installed on the electric chassis assembly through riveting. A control module, a foam liquid supply assembly 24, a gas-liquid mixing assembly 26, a water supply assembly 23 and a gas supply assembly 25 are sequentially arranged around the liquid tank assembly 22. The upper assembly, the water supply assembly 23, the foam liquid supply assembly 24, the gas supply assembly 25 and the control module are all installed on the electric chassis assembly through bolts. The gas-liquid mixing assembly 26 is fixed on the electric chassis assembly through a pipe clamp.

[0134] The electric chassis assembly is used for driving the first compressed air foam generating module 2 to move. Specifically, the electric chassis assembly comprises a first frame platform 201, a steering unit 202, a driving unit 203, a power module 204 and a brake unit 205.

[0135] The first frame platform 201 serves as a main structure of the electric chassis assembly and is used for installing other components. Along the moving direction of the electric chassis assembly, the first frame platform 201 is sequentially provided with the steering unit 202 and the driving unit 203 at the bottom from front to back through bolts.

[0136] The driving unit 203 refers to the arrangement of a vehicle engine and the number and position of vehicle driving wheels, which are prior art and will not be described herein.

[0137] The first frame platform 201 is provided with the steering unit 202 at the front side. The steering unit 202 refers to a special mechanism for changing the driving direction of a vehicle. Specifically, the steering unit 202 comprises a steering bridge assembly 2020, a steering column 2021 and a steering handle 2022. The first frame platform 201 is connected with the steering bridge assembly 2020 at the bottom through bolts. The steering bridge assembly 2020 is a vehicle bridge for bearing the steering task and is composed of four parts, i.e., a front axle, a kingpin, a steering knuckle and a wheel hub, which are prior art and will not be described herein. The input end of the steering bridge assembly 2020 is connected with the bottom end of the steering column 2021. The top end of the steering column 2021 is connected with the steering handle 2022 through bolts. In use, the steering handle 2022 is driven to make the steering column 2021 drive the steering bridge assembly 2020 to steer, so as to finally realize the steering of the first frame platform 201, which is prior art and will not be described herein.

[0138] The first frame platform 201 is provided with the power module 204. The power module 204 is an independent power conversion device and is used for supplying power to the entire electric chassis assembly, the water supply assembly 23, the foam liquid supply assembly 24, the gas supply assembly 25 and the control module.

[0139] The brake unit 205 refers to the part responsible for generating braking force in the braking system, and the brake unit 205 is welded at the bottom of the first frame platform 201. The connecting rod of the brake unit 205 is connected with the brake pull rod of the driving unit 203, which is prior art and will not be described again.

[0140] The process of driving the first compressed air foam generating module 2 to move by the electric chassis assembly is that the electric chassis assembly is driven by the driving unit 203 to move the first frame platform 201 under the power supply of the power supply module 204. The steering control is realized by driving the steering handle 2022 to drive the steering bridge assembly 2020 through the steering column 2021, and the brake unit 205 is connected with the brake pull rod of the driving unit 203 through the connecting rod to brake, thereby driving the first compressed air foam generating module 2 to move, which is prior art and will not be described again.

[0141] The upper assembly includes a front cover 210, a middle cover 211 and a tail cover 212, and the electric chassis assembly is sequentially covered by the front cover 210, the middle cover 211 and the tail cover 212 through bolts. The front cover 210, the middle cover 211, the tail cover 212 and the electric chassis assembly together enclose a space.

[0142] The liquid tank assembly 22 is used for storing water and foam liquid. Specifically, the liquid tank assembly 22 includes a water tank 220, a water inlet 221, a water outlet 222, a first breathing valve 223, a foam liquid tank 224, a liquid inlet 225, a foam liquid outlet pipe 226, a second breathing valve 227, a first liquid level sensor 228, a second liquid level sensor 229 and a liquid level digital display table.

[0143] The water tank 220 is used for storing water, and the water inlet 221 is arranged on the water tank 220. The water outlet 222 is arranged on the right side of the water tank 220. In order to ensure the water storage stability of the water tank 220, the first breathing valve 223 is arranged on the water tank 220.

[0144] The foam liquid tank 224 is welded on the rear side of the water tank 220, and the foam liquid tank 224 is used for storing foam liquid. The liquid inlet 225 is arranged on the foam liquid tank 224, and the foam liquid outlet pipe 226 is communicated with the right side of the foam liquid tank 224. In order to ensure the foam liquid storage stability of the foam liquid tank 224, the second breathing valve 227 is arranged on the foam liquid tank 224.

[0145] The breathing valve is a valve that can communicate with the atmosphere when the pressure exceeds or is lower than the range, and ensure that the tank space is isolated from the atmosphere within a certain pressure range, which is prior art and will not be described again.

[0146] Further, in order to verify the liquid level of the water tank 220 and the foam liquid tank 224, the first liquid level sensor 228 and the liquid level display table are preferably arranged on the water tank 220, and the second liquid level sensor 229 is arranged on the foam liquid tank 224. The liquid level sensor is a device for measuring the liquid level, and the liquid level display table displays the liquid level after measurement. Specifically, the liquid level display table is a digital instrument for displaying the liquid level. The liquid level display table is connected with the liquid level sensor, receives the liquid level signal, and converts it into a digital form displayed on the screen. This is a prior art and will not be described in detail.

[0147] The water supply assembly 23 supplies water from the water tank 220 or the water source to the gas-liquid mixing assembly 26 of the module 1. Specifically, the water supply assembly 23 includes a first water inlet pipe 230, a first electric three-way selector valve 231, a fire pump set 232, a water outlet pipe 233, a first check valve 234, a second water inlet pipe 235, a filter 236, a third water inlet pipe 237, and a first fire quick connector 238. The water outlet 222 is connected to one end of the first water inlet pipe 230, and the other end of the first water inlet pipe 230 is connected to the first inlet end of the first electric three-way selector valve 231. The first electric three-way selector valve 231 is a device that controls the opening and closing state of the valve through an electric actuator, and has a total of three ports.

[0148] The outlet end of the first electric three-way selector valve 231 is connected to one end of the water outlet pipe 233. Along the water delivery direction, the fire pump set 232 and the first check valve 234 are arranged in sequence on the water outlet pipe 233. The fire pump set 232 refers to a fire pump with a power source. The other end of the water outlet pipe 233 is connected to the first check valve 234, and the first check valve 234 is connected to the gas-liquid mixing assembly 26.

[0149] The second inlet end of the first electric three-way selector valve 231 is connected to one end of the second water inlet pipe 235. The other end of the second water inlet pipe 235 is connected to the outlet end of the filter 236. The inlet end of the filter 236 is connected to one end of the third water inlet pipe 237, and the other end of the third water inlet pipe 237 is connected to the first fire quick connector 238.

[0150] The water supply assembly 23 has two ways to supply water. One way is to deliver water in the water tank 220 to the gas-liquid mixing assembly 26. Specifically, the fire pump set 232 is started, and the water in the water tank 220 enters the gas-liquid mixing assembly 26 through the water outlet pipe 233.

[0151] The other way is to deliver external water supply to the gas-liquid mixing assembly 26. Specifically, the first fire quick connector 238 can be connected to the water source supply module 1 through the water suction pipe 12, so that the water in the water source supply module 1 enters the gas-liquid mixing assembly 26 in sequence through the third water inlet pipe 237, the second water inlet pipe 235, and the water outlet pipe 233.

[0152] The foam liquid assembly 24 is used to deliver the foam liquid in the foam liquid tank 224 to the gas-liquid mixing assembly 26. Specifically, the foam liquid assembly 24 comprises a foam liquid pipe 240, a self-suction foam liquid pump 241 and a second one-way valve 242. The foam liquid outlet pipe 226 is connected to the gas-liquid mixing assembly 26 through the foam liquid pipe 240. In the foam liquid delivery direction, the foam liquid pipe 240 is sequentially provided with the self-suction foam liquid pump 241 and the second one-way valve 242.

[0153] The gas supply assembly 25 is used to deliver compressed air to the gas-liquid mixing assembly 26. Specifically, the gas supply assembly 25 comprises a piston air compressor 250, a valve block 251, a safety valve 252, a third one-way valve 253, a flow sensor 254 and a gas delivery pipe 255. The piston air compressor 250 is connected to the gas-liquid mixing assembly 26 through the gas delivery pipe 255. In the gas delivery direction, the gas delivery pipe 255 is sequentially provided with the valve block 251, the third one-way valve 253 and the flow sensor 254. The flow sensor 254 is a device used to measure the flow speed, volume or mass of fluid, and is used to measure the flow speed, volume or mass of gas in the gas delivery pipe 255.

[0154] The safety valve 252 is arranged on the valve block 251. The safety valve 252 is a safety protection valve that is automatically opened and closed according to the working pressure of the pressure system. It is generally installed on the equipment or pipeline of the closed system to protect the safety of the system, and is used to protect the safety of the gas delivery pipe 255.

[0155] The process of the gas supply assembly 25 for inputting compressed air to the gas-liquid mixing assembly 26 is as follows. The compressed air generated by the piston air compressor 250 is regulated by the safety valve 252 on the valve block 251, and then delivered to the gas-liquid mixing assembly 26 through the gas delivery pipe 255 after being measured by the flow sensor 254.

[0156] The gas-liquid mixing assembly 26 is used for mixing compressed air, foam liquid and water. Specifically, the gas-liquid mixing assembly 26 comprises a turbulence-free fourth water inlet pipe 260, a tee joint 261, a foam liquid inlet pipe 262, a mixing chamber 263, a high-pressure air inlet pipe 264, a compressed air foam liquid outlet pipe 265, and a second fire hose coupling 266. The first one-way valve 234 is connected to one end of the fourth water inlet pipe, and the other end of the fourth water inlet pipe is connected to the tee joint 261. The lower interface of the tee joint 261 is connected to the foam liquid pipe 240, and the left interface of the tee joint 261 is connected to the mixing chamber 263. The mixing chamber 263 is connected to the air supply pipe 255 through the high-pressure air inlet pipe 264. The outlet of the mixing chamber 263 is connected to one end of the compressed air foam liquid outlet pipe 265. A control module is arranged on the compressed air foam liquid outlet pipe 265. The control module is a key device for accurately adjusting the flow, pressure and flow direction of liquid, and is widely used in industrial automation, laboratory equipment, water treatment and other fields. Therefore, the control module is not described herein. The other end of the compressed air foam liquid outlet pipe 265 is connected to the second fire hose coupling 266.

[0157] The gas-liquid mixing assembly 26 is used for mixing compressed air, foam liquid and water. Specifically, the gas-liquid mixing assembly 26 comprises a turbulence-free fourth water inlet pipe 260, a tee joint 261, a foam liquid inlet pipe 262, a mixing chamber 263, a high-pressure air inlet pipe 264, a compressed air foam liquid outlet pipe 265, and a second fire hose coupling 266. The first one-way valve 234 is connected to one end of the fourth water inlet pipe, and the other end of the fourth water inlet pipe is connected to the tee joint 261. The lower interface of the tee joint 261 is connected to the foam liquid pipe 240, and the left interface of the tee joint 261 is connected to the mixing chamber 263. The mixing chamber 263 is connected to the air supply pipe 255 through the high-pressure air inlet pipe 264. The outlet of the mixing chamber 263 is connected to one end of the compressed air foam liquid outlet pipe 265. A control module is arranged on the compressed air foam liquid outlet pipe 265. The control module is a key device for accurately adjusting the flow, pressure and flow direction of liquid, and is widely used in industrial automation, laboratory equipment, water treatment and other fields. Therefore, the control module is not described herein. The other end of the compressed air foam liquid outlet pipe 265 is connected to the second fire hose coupling 266.

[0158] It is worth mentioning that the first fire hose coupling 238 is connected to the water suction pipe 12, so that the water supply module 1 and the first compressed air foam generating module 2 are in communication.

[0159] The first compressed air foam generating module 2 is used for generating compressed air foam, and the process is as follows:

[0160] First, the water supply assembly 23 sends the water in the water tank 220 to the gas-liquid mixing assembly 26. Specifically, the fire pump set 232 is started, and the water in the water tank 220 enters the gas-liquid mixing assembly 26 through the water outlet pipe 233.

[0161] Secondly, the foam liquid supply assembly 24 sends the foam liquid in the foam liquid tank 224 to the gas-liquid mixing assembly 26. Specifically, the self-suction foam liquid pump 241 is started, the foam liquid in the foam liquid tank 224 flows out through the foam liquid outlet pipe 226, and enters the gas-liquid mixing assembly 26 through the foam liquid pipe 240.

[0162] Then, the air supply assembly 25 delivers compressed air to the gas-liquid mixing assembly 26, specifically, the compressed air generated by the piston air compressor 250 is regulated by the safety valve 252 on the valve block 251, then measured by the flow sensor 254, and finally safely delivered to the gas-liquid mixing assembly 26 by the air delivery pipeline 255.

[0163] Finally, the gas-liquid mixing assembly 26 mixes to form compressed air foam.

[0164] Referring to Figures 12-18 The height lifting spraying robot 3 is used for high position spraying fire extinguishing, and comprises a crawler chassis mechanism, a telescopic leg mechanism, a height lifting adjusting mechanism and a spraying mechanism. The telescopic leg mechanism is arranged at four corners of the bottom of the crawler chassis mechanism, the height lifting adjusting mechanism is arranged on the crawler chassis mechanism, and the spraying mechanism is arranged at the top of the height lifting adjusting mechanism.

[0165] The crawler chassis mechanism is used for adjusting the movement of the whole height lifting spraying robot 3 and is a bearing platform of the height lifting adjusting mechanism and the spraying mechanism. Specifically, the crawler chassis mechanism comprises a frame body 301, a rolling assembly 302, a rubber crawler 303, a second motor 304, a control box 305, a battery 306, a cover plate 307 and an outer shell 308.

[0166] The frame body 301 serves as the main structure of the crawler chassis mechanism and is used for fixedly mounting other components. The frame body 301 is provided with the rolling assembly 302 on both sides of the bottom, and the rolling assembly 302 on the adjacent side is wrapped by the rubber crawler 303 on the outside.

[0167] The second motor 304, the control box 305 and the battery 306 are arranged in sequence along the length direction above the frame body 301. The battery 306 provides power for the crawler chassis mechanism, specifically, the battery 306 is electrically connected with the control box 305, the control box 305 is electrically connected with the second motor 304, and the driving shaft of the second motor 304 is connected with the input end of the rolling assembly 302 through a coupling.

[0168] In use, the battery 306 outputs high-voltage direct current to the control box 305, the control box 305 monitors the state of charge of the battery 306 in real time, and dynamically adjusts the output power to prevent overload.

[0169] The control box 305 receives motion instructions such as speed or direction from an upper computer, and outputs signals to the second motor 304, which is a prior art and will not be described in detail. The driving shaft of the second motor 304 rotates, and the torque is transmitted to the rolling assembly 302 through the coupling. The rolling assembly 302 rotates to drive the rubber crawler 303 to move in a ring shape.

[0170] Further, the safety and protection of the track chassis mechanism are considered. Preferably, a cover plate 307 is arranged above the middle of the frame body 301, covering the second motor 304, the control box 305 and the battery 306, for waterproof sealing, and a height adjustment mechanism is arranged on the cover plate 307.

[0171] The outer shell 308 is arranged on both sides of the frame body 301, which protects the rubber track 303, and the outer shell 308 is spliced with the cover plate 307 to realize protection of the entire track chassis mechanism.

[0172] The telescopic leg mechanism is used to adjust the stop support of the track chassis mechanism. Specifically, the telescopic leg mechanism includes a telescopic arm frame 310, a movable frame 311, an electric push rod 312, a third motor 313, a telescopic pipe 314 and an electric leg 315. The telescopic arm frame 310 has a "U" shaped transverse section and is fixed to the periphery of the frame body 301. Specifically, along the moving direction of the track chassis mechanism, the longitudinal beam of the telescopic arm frame 310 is fixed to the front of the frame body 301, and the longitudinal beam of the telescopic arm frame 310 extends along the length direction.

[0173] The lateral beams of the telescopic arm frame 310 extend along the outer contour of the frame body 301 and are fixed to the sides of the frame body 301. The electric push rod 312 is arranged on the frame body 301, which is a linear drive structure driven by an electric motor to realize telescopic movement, and the output end of the electric push rod 312 is parallel to the length direction of the frame body 301.

[0174] The lateral beams of the telescopic arm frame 310 are square tube structures, and the movable frame 311 is inserted into the two ends of the lateral beams, respectively. The movable frame 311 has a U-shaped structure, the lateral beam of the movable frame 311 is inserted into the lateral beam of the telescopic arm frame 310, and the longitudinal beam of the movable frame 311 is connected to the output end of the electric push rod 312.

[0175] The longitudinal beam of the movable frame 311 is a square tube structure, and the longitudinal beam of the movable frame 311 extends along the length direction. The third motor 313 is arranged in the middle of the longitudinal beam of the movable frame 311. The third motor 313 is a double-head motor, which is a motor with two rotors and can provide double rotation. The output ends of the double-head motor are connected to lead screws, the lead screws are engaged with screw nuts, and the screw nuts are connected to the telescopic pipes 314 at the two ends of the longitudinal beam of the movable frame 311.

[0176] The electric leg 315 is arranged at the two ends of the longitudinal beam of the movable frame 311 and the longitudinal beam of the telescopic arm frame 310. The electric leg 315 is a device installed on a semitrailer, an engineering vehicle or the like, which plays a supporting role when the semitrailer is separated or the engineering vehicle is used.

[0177] The height adjusting mechanism is used for adjusting the spraying height of the spraying mechanism, and is used for extinguishing the fire in the high-altitude fire area. The height adjusting mechanism comprises a third adjusting assembly, a second adjusting assembly, a first adjusting assembly and the spraying mechanism. The third adjusting assembly is arranged on the cover plate 307. The third adjusting assembly, the second adjusting assembly, the first adjusting assembly and the spraying mechanism are sequentially connected from bottom to top.

[0178] The third adjusting assembly is mainly used for adjusting the overturning of the whole height adjusting mechanism. Specifically, the third adjusting assembly comprises a pin shaft 3201, a bearing 3202, a first base 3203 and a laying electric cylinder 3204. The first base 3203 is arranged on the cover plate 307. The first base 3203 is connected to the second adjusting assembly through the pin shaft 3201. The second adjusting assembly is driven to overturn by the laying electric cylinder 3204.

[0179] The laying electric cylinder 3204 refers to a hinged electric push rod. The principle is that the linear extension and retraction and the hinge rotation compound motion of the push rod are realized through electric driving, so that the load completes the laying action from standing to lying. It is prior art and will not be described here.

[0180] Specifically, the first base 3203 has a U-shaped structure. The second adjusting assembly is arranged in the first base 3203 and connected to each other through the pin shaft 3201. The bearing 3202 is arranged between the pin shaft 3201 and the first base 3203. The laying electric cylinder 3204 is arranged on the first base 3203. The output end of the laying electric cylinder 3204 is connected to the second adjusting assembly.

[0181] In use, the second adjusting assembly is laid by starting the laying electric cylinder 3204, so as to realize the folding and unfolding of the height adjusting mechanism.

[0182] The second adjusting assembly is used for adjusting the height of the spraying mechanism. Specifically, the second adjusting assembly comprises a lifting rod 3210, a second fixed frame 3211, a first motor 3212 and a mounting plate 3213. The mounting plate 3213 is connected to the first base 3203 through the pin shaft 3201. The first motor 3212 and the second fixed frame 3211 are arranged on the mounting plate 3213. The lifting rod 3210 is arranged at the bottom end of the second fixed frame 3211. The top end of the lifting rod 3210 is the output end of the lifting rod 3210. The first motor 3212 provides power for the lifting rod 3210.

[0183] The lifting rod 3210 is preferably a multi-stage telescopic column. The principle is that the first motor 3212 provides power for the steel wire rope traction system. The steel wire rope traction system drives the multi-stage rectangular pipe to nest and retract, and finally realizes lifting. It is prior art and will not be described here.

[0184] The first adjusting assembly is used for adjusting the rotation of the spraying mechanism in the horizontal direction. Specifically, the first adjusting assembly comprises a rotating holder 3220, a rotating joint 3221 and a first fixing frame 3222. The first fixing frame 3222 is arranged at the output end of the lifting rod 3210, the rotating holder 3220 is arranged on the first fixing frame 3222, and the rotating holder 3220 is connected to the spraying mechanism through the rotating joint 3221. The first fixing frame 3222 has an inverted “U” shape, and sufficient space is reserved for the rotating joint 3221.

[0185] The rotating holder 3220 is a mechanical structure for controlling the angle adjustment of an object and can carry the object to rotate in the horizontal direction. The rotating joint 3221 is a pipeline connecting device, and the connected pipelines can rotate relative to each other. Therefore, the rotating holder 3220 and the rotating joint 3221 can be combined to realize the rotation of the spraying mechanism relative to the first fixing frame 3222 in the horizontal direction, and the pipeline connection of the spraying mechanism is not affected.

[0186] The spraying mechanism comprises a spray pipe welding member 330, a first spray pipe 331 and a second spray pipe 332. Specifically, the spray pipe welding member 330 has a longitudinal section in the shape of a “T” pipe. The longitudinal pipe section of the spray pipe welding member 330 is connected to the rotating holder 3220 through the rotating joint 3221. The ends of the horizontal pipe section of the spray pipe welding member 330 are sealed. The horizontal pipe section of the spray pipe welding member 330 is provided with a row of spray pipes. The spray pipes and the spray pipe welding member 330 are connected to each other. There are three spray pipes, which are the first spray pipe 331 located at the two ends of the horizontal pipe section of the spray pipe welding member 330 and the second spray pipe 332 located at the middle of the horizontal pipe section of the spray pipe welding member 330.

[0187] The longitudinal pipe section of the spray pipe welding member 330 refers to the part of the pipe member with the vertical axis. The horizontal pipe section of the spray pipe welding member 330 refers to the part of the pipe member with the horizontal axis. In actual use, the spray pipes are not limited to being arranged in one row, but can also be arranged in two rows or more rows, which can be designed according to the actual situation.

[0188] Similarly, the number of spray pipes is not limited to three, but at least two spray pipes should be distributed at the two ends of the horizontal pipe section of the spray pipe welding member 330, and at least one second spray pipe 332 should be located at the middle of the horizontal pipe section of the spray pipe welding member 330.

[0189] Among them, the two first spray pipes 331 are arranged in an axial inward inclination and a radial inclination, and the second spray pipe 332 has a downward inclination angle. The radial inclination and the downward inclination angle are different in size. The jet beams of the three spray pipes intersect in space to form a highly concentrated three-dimensional convergent jet flow field.

[0190] The axial inward inclination and the radial inclination refer to the fact that the two first spray pipe nozzles are close to each other and inclined downward away from the horizontal pipe section of the spray pipe welding member 330.

[0191] In addition, in actual use, the radial inclination angle can be greater than the downward inclination angle, or the radial inclination angle can be less than the downward inclination angle, as long as the two angles are different. In the embodiment, the downward inclination angle is preferably less than the radial inclination angle.

[0192] Therefore, the spraying mechanism claimed in the embodiment cooperates the downward convergent jet flow formed by the first spray pipes 331 at both ends with the upward jet flow generated by the second spray pipe 332 in the middle to construct a composite jet flow field in three-dimensional space, so as to achieve directional and efficient coverage and suppression of the space stereoscopic fire source.

[0193] The upward jet flow refers to the upward jet flow sprayed by the second spray pipe 332 relative to the jet flow of the first spray pipe 331, and is not intended to refer to the direction of the jet flow. In essence, the jet flows sprayed by the second spray pipe 332 and the first spray pipe 331 are both downward jet flows.

[0194] Referring to Figures 19-21 Further, a three-dimensional coordinate system is established with the axis of the transverse pipe section of the spray pipe welding assembly 330 as the X axis, a horizontal line perpendicular to the X axis as the Y axis, the longitudinal pipe axis of the spray pipe welding assembly 330 as the Z axis, and the intersection of the connecting lines as the origin O.

[0195] Specifically, the downward inclination angle of the second spray pipe 332 is α, which is the included angle between the axis of the second spray pipe 332 and the Y axis, and α satisfies the following formula:

[0196] α = arctan (h / s) × K

[0197] Wherein, h is the vertical distance of the second spray pipe 332 from the fire section of the object to be extinguished along the Z axis direction; s is the distance between the second spray pipe 332 at the allowable extinguishing position and the center of the object to be extinguished; and K is the downward inclination angle correction coefficient of the second spray pipe 332.

[0198] The downward inclination angle correction coefficient K of the second spray pipe 332 is corrected according to the size of the object to be extinguished and the vertical distance h of the second spray pipe 332 from the fire section of the object to be extinguished along the Z axis direction, and K is preferably 0.85-0.95.

[0199] The downward inclination angle of the first spray pipe 331 is β, which is the included angle between the axis of the first spray pipe 331 and the Y axis, and β satisfies the following formula:

[0200] β = α + 4°

[0201] Wherein, α is the downward inclination angle of the second spray pipe 332.

[0202] The axial inward inclination angle of the first spray pipe 331 is Γ, which is the included angle between the axis of the first spray pipe 331 and the X axis, and Γ satisfies the following formula:

[0203] Γ = arctan (L / 2s)

[0204] Wherein, L is the distance between the first nozzle 331; s is the distance between the second nozzle 332 and the center of the object to be extinguished.

[0205] Referring to Figure 22 In some embodiments, in order to accurately align the extinguishing position, it is preferred to provide a demolition mechanism on the first fixed frame 3222 for removing other components blocking the fireproof section of the object to be extinguished, wherein the demolition mechanism comprises a second base 340, a guide fixed cylinder 341, a guide body 342, an impact motor 343 and a hole opener 344.

[0206] The second base 340 is bolted on the first fixed frame 3222, the second base 340 connects the guide fixed cylinder 341, the guide fixed cylinder 341 has a horizontal axis and is located on the same side of the nozzle, the guide fixed cylinder 341 coaxially slides the guide body 342 inside, the guide body 342 suspends the impact motor 343 at the end or side, and the rotating shaft of the impact motor 343 connects the hole opener 344.

[0207] The process of the demolition mechanism for removing the shielding object is as follows:

[0208] The second base 340 provides a stable foundation for the entire demolition mechanism, the guide fixed cylinder 341 and the guide body 342 are in sliding fit, which can ensure that the guide body 342 can move stably and controllably in a straight line along the axis of the fixed cylinder, and also serves as a support platform for the impact motor 343 and the hole opener 344.

[0209] Wherein, the impact motor 343 is a mechanical impact caused by external factors or internal factors during startup, stop or operation of the motor, which is a prior art and will not be described in detail. Therefore, when demolition is needed, the impact motor 343 is started to drive the hole opener 344 to rotate at high speed and generate high-frequency and high-energy impact along the rotation axis direction, causing damage to the shielding object.

[0210] It is worth mentioning that the second fire fighting quick connector 266 is connected through the rotary joint 3221, which can realize the communication between the high-altitude spraying robot 3 and the first compressed air foam generating module 2.

[0211] The process of the high-altitude spraying robot 3 for high-altitude fire extinguishing and retraction is as follows:

[0212] Firstly, drive the crawler chassis mechanism to move to the position allowing extinguishing near the on-fire current transformer; specifically, the battery 306 outputs high-voltage direct current to the control box 305, the control box 305 outputs a driving signal to the second motor 304, the second motor 304 drives the shaft to rotate, the torque is transmitted to the rolling assembly 302 through the shaft coupling, and the rolling assembly 302 rotates to drive the rubber crawler 303 to move in a ring shape to the position, which is prior art and will not be described in detail.

[0213] Secondly, start the telescopic support leg mechanism to stop supporting the lifting and spraying robot 3; specifically, start the electric push rod 312 to move the crossbeam of the movable frame 311 in the length direction of the frame in the crossbeam of the telescopic arm frame 310, at this time, the movable frame 311 is unfolded relative to the telescopic arm frame 310; start the double-head motor to rotate the lead screw, drive the lead screw nut to engage with the lead screw, and make the telescopic pipe 314 extend out of the longitudinal beam of the movable frame 311; start the electric support leg 315 to support on the bottom surface.

[0214] Then, adjust the lifting and adjusting mechanism; specifically including the following stages.

[0215] Stage one, adjust the second adjusting assembly for adjusting the height of the substation fire extinguishing spraying mechanism, specifically, start the first motor 3212 to drive the lifting rod 3210 to extend in the height direction to realize the lifting.

[0216] Stage two, adjust the first adjusting assembly for adjusting the horizontal rotation of the substation fire extinguishing spraying mechanism, specifically, adjust the rotating holder 3220 to make the substation fire extinguishing spraying mechanism rotate relative to the first fixed frame 3222 in the horizontal direction.

[0217] Stage three, after the fire extinguishing is completed, adjust the second adjusting assembly in the reverse direction to make the second adjusting assembly retract; then adjust the third adjusting assembly; specifically, start the reverse cylinder 3204 to make the mounting plate 3213 flip relative to the first base 3203 to realize the retraction and extension of the lifting and adjusting mechanism.

[0218] Embodiment two

[0219] Again refer to Figures 19-21 , the embodiment provides the application of the lifting and spraying robot 3 for extinguishing the current transformer, specifically, the spraying mechanism parameter setting.

[0220] Taking the coil diameter of the current transformer as an example, the vertical distance of the second spraying pipe 332 from the on-fire section of the current transformer along the Z-axis direction is 0.39 m; the distance between the allowed fire extinguishing position of the second spraying pipe 332 and the center of the current transformer is 2.5 m. Then, the downward inclination angle a of the second spraying pipe 332 is preferably 9°, and the downward inclination angle β of the first spraying pipe 331 is preferably 13°.

[0221] The distance between the first spray pipes 331 is selected as 0.7 m, and the axial inward angle Γ of the first spray pipe 331 is 8°.

[0222] The elevated spraying robot 3 can quickly move to the allowed fire extinguishing position near the on-fire current transformer. In view of the fact that the existing current transformers generally have a high height, the height of the spraying mechanism is quickly adjusted by the second adjusting assembly to adapt to the target position; at the same time, the spraying mechanism is adjusted in the horizontal direction by the first adjusting assembly, which significantly improves the overall applicability and deployment convenience of the robot.

[0223] The spraying mechanism positioned by adjustment, the downward convergent jet flow formed by the first spray pipe 331 cooperates with the upward jet flow generated by the second spray pipe 332 to construct a composite jet flow field in three-dimensional space. This composite jet flow field can realize directional and efficient coverage and fire suppression on a spatial three-dimensional fire source.

[0224] Further, by cooperating with the specific calculation of the inclination angles of the first spray pipe 331 and the second spray pipe 332, a better spraying mechanism configuration can be accurately matched for the fire extinguishing demand of a specific current transformer, so as to achieve a better fire extinguishing effect.

[0225] Embodiment Three

[0226] Referring to Figure 23 , the embodiment provides an elevated fire extinguishing method suitable for a few-man attended substation based on the embodiment one, which comprises:

[0227] S1, confirming the height of the fire extinguishing position;

[0228] S2, sequentially connecting the water supply module 1, the first compressed air foam generating module 2 and the elevated spraying robot 3; specifically, the rotating joint 3221 is connected to the second fire-fighting quick joint 266.

[0229] S3, driving the first compressed air foam generating module 2 and controlling the elevated spraying robot 3 to move to the allowed fire extinguishing position, aiming at the fire extinguishing position, spraying fire extinguishing, which has been described in detail above and will not be repeated.

[0230] It is worth mentioning that when the first compressed air foam generating module 2 is insufficient in water supply, the first compressed air foam generating module 2 can also be externally supplied with water by the water supply module 1.

[0231] The sequential connection of the water supply module 1, the first compressed air foam generating module 2 and the elevated spraying robot 3 can be achieved by manual or remote control robot connection.

[0232] The details of each step have been described in detail above and will not be repeated.

[0233] The above examples are only used to illustrate the technical solutions of the present application, and are not intended to limit the present application; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that the technical solutions recorded in the foregoing examples can be modified, or some technical features can be replaced by equivalent features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A high-rise fire extinguishing system for a reduced manning substation, characterized in that, The water supply module (1), the first compressed air foam generating module (2) and the elevated jet robot (3) are configured in a mechanical state capable of running, the water supply module (1) is configured to supply water externally to the first compressed air foam generating module (2), the first compressed air foam generating module (2) is in communication with the elevated jet robot (3), and the jet path of the elevated jet robot (3) forms a composite jet field in three-dimensional space. The elevated jet robot (3) comprises a jet mechanism located at the top, the jet mechanism is provided with at least three nozzles, the jet paths of the nozzles are different in inclination angle in three-dimensional space, and a composite jet field is formed.

2. The elevated fire extinguishing system suitable for a few-man attended substation according to claim 1, characterized in that, The jet mechanism comprises a nozzle welding member (330), at least one first nozzle (331) and at least one second nozzle (332); 3. The elevated fire extinguishing system suitable for a few-man attended substation according to claim 2, characterized in that, The nozzle welding member (330) is provided with at least one first nozzle (331) at both ends, and at least one second nozzle (332) is arranged in the middle of the nozzle welding member (330); one end of the first nozzle (331) and the second nozzle (332) is in communication with the nozzle welding member (330), and the other end of the first nozzle (331) and the second nozzle (332) forms a nozzle. The first nozzle (331) is configured in cooperation with axial inward inclination and radial pitch-down, and the second nozzle (332) is inclined downward, and the downward inclination angle of the second nozzle (332) is different from the radial pitch-down angle of the first nozzle (331). The downward inclination angle of the second nozzle (332) is α, which is the complementary angle of the included angle between the axis of the second nozzle (332) and the plumb line, and α satisfies the following formula:

4. The elevated fire extinguishing system suitable for a few-man attended substation according to claim 3, characterized in that, α=arctan(h / s)×K Wherein, h is the vertical distance of the second nozzle (332) from the ignition section of the object to be extinguished along the Z-axis direction; s is the distance between the second nozzle (332) and the center of the object to be extinguished at the allowable extinguishing position; K is the downward inclination angle correction coefficient of the second nozzle (332). The radial pitch-down angle of the first nozzle (331) is β, which is the complementary angle of the included angle between the axis of the first nozzle (331) and the plumb line, and β satisfies the following formula:

5. The elevated fire extinguishing system suitable for a few-man attended substation according to claim 3, characterized in that, Wherein, α is the downward inclination angle of the second nozzle (332). β＝α+4° The axial inward inclination angle of the first nozzle (331) is Γ, which is the included angle between the axis of the first nozzle (331) and the horizontal line, and Γ satisfies the following formula:

6. The elevated fire extinguishing system suitable for a few-man attended substation according to claim 3, characterized in that, Γ=arctan(L / 2s) Wherein, L is the distance between the first nozzles (331); s is the distance between the second nozzle (332) and the center of the object to be extinguished at the allowable extinguishing position. The elevated jet robot (3) further comprises a tracked chassis mechanism, a telescopic leg mechanism and an elevated adjustment mechanism; the tracked chassis mechanism is provided with the telescopic leg mechanism at the bottom, the tracked chassis mechanism is provided with the elevated adjustment mechanism on the top, and the jet mechanism is arranged on the top of the elevated adjustment mechanism.

7. The elevated fire extinguishing system suitable for a few-man attended substation according to claim 1, characterized in that, The tracked chassis mechanism comprises a frame body (301), a rolling assembly (302), a rubber track (303), a second motor (304), a control box (305), a battery (306), a cover plate (307) and an outer shell (308); 8. The elevated fire extinguishing system suitable for a few-man attended substation according to claim 7, characterized in that, ​ The bottom of the frame body (301) is provided with a rolling assembly (302) on both sides, and the outer side of the rolling assembly (302) on the adjacent side is wrapped by a rubber track (303). The second motor (304), the control box (305) and the battery (306) are arranged in sequence along the length direction above the frame body (301), the battery (306) is configured to supply power to the control box (305) and the second motor (304), the control box (305) is electrically connected with the second motor (304), and the driving shaft of the second motor (304) is connected with the input end of the rolling assembly (302) through a shaft coupling. The upper middle part of the frame body (301) is provided with a cover plate (307), and the cover plate (307) covers the second motor (304), the control box (305) and the battery (306); the upper sides of the frame body (301) are covered with a shell (308), and the shell (308) covers the rubber track (303); and the shell (308) and the cover plate (307) are spliced.

9. The elevated fire extinguishing system suitable for a few-man attended substation according to claim 7, characterized in that, The telescopic supporting leg mechanism comprises a telescopic arm frame (310), a movable frame (311), an electric push rod (312), a third motor (313), a telescopic pipe (314) and an electric supporting leg (315). The telescopic arm frame (310) is in the shape of a "U" in the transverse section, and the longitudinal beam of the telescopic arm frame (310) is fixed to the front of the frame body (301) along the moving direction of the track chassis mechanism, and the longitudinal beam of the telescopic arm frame (310) extends along the length direction and is fixed at both ends. The electric push rod (312) is arranged on the frame body (301), and the output end of the electric push rod (312) is parallel to the length direction of the frame body (301). The cross beam of the telescopic arm frame (310) is in the shape of a pipe, the two ends of the cross beam of the telescopic arm frame (310) are respectively inserted into the two ends of the movable frame (311), the movable frame (311) is in the shape of a U-shaped frame, the cross beam of the movable frame (311) is inserted into the cross beam of the telescopic arm frame (310), and the longitudinal beam of the movable frame (311) is connected with the output end of the electric push rod (312). The longitudinal beam of the movable frame (311) is in the shape of a pipe, the longitudinal beam of the movable frame (311) extends along the length direction at both ends, a third motor (313) is arranged in the middle of the longitudinal beam of the movable frame (311), the two output ends of the third motor (313) are connected with lead screws, the lead screws are engaged with screw nuts, and the screw nuts are respectively connected with the end portions of the telescopic pipes (314) inserted into the two ends of the longitudinal beam of the movable frame (311); the electric supporting leg (315) is arranged at both ends of the longitudinal beam of the movable frame (311) and the longitudinal beam of the telescopic arm frame (310).

10. The elevated fire extinguishing system suitable for a few-man attended substation according to claim 7, characterized in that, The height adjusting mechanism comprises a third adjusting assembly, a second adjusting assembly and a first adjusting assembly; the third adjusting assembly, the second adjusting assembly, the first adjusting assembly and the spraying mechanism are connected in sequence from bottom to top.

11. The elevated fire extinguishing system suitable for a few-attended substation according to claim 10, characterized in that, The third adjusting assembly comprises a pin shaft (3201), a bearing (3202), a first base (3203) and a lodging electric cylinder (3204), the first base (3203) is arranged on the cover plate (307), the first base (3203) is connected with the bottom of the second adjusting assembly through the pin shaft (3201), and the second adjusting assembly is driven to flip by the lodging electric cylinder (3204).

12. The elevated fire extinguishing system suitable for a few-man attended substation according to claim 10, characterized in that, The second adjusting assembly comprises a lifting rod (3210), a second fixing frame (3211), a first motor (3212) and a mounting plate (3213), the mounting plate (3213) is connected to the first base (3203) through a pin shaft (3201), the first motor (3212) and the second fixing frame (3211) are arranged on the mounting plate (3213), the bottom end of the lifting rod (3210) is arranged on the second fixing frame (3211), the top end of the lifting rod (3210) is the output end of the lifting rod (3210), and the first motor (3212) is configured to provide power for the lifting rod (3210).

13. The elevated fire extinguishing system suitable for a few-man attended substation according to claim 10, characterized in that, The first adjusting assembly comprises a rotating holder (3220), a rotating joint (3221) and a first fixing frame (3222); the output end of the lifting rod (3210) is provided with the first fixing frame (3222), the rotating holder (3220) is arranged on the first fixing frame (3222), and the rotating holder (3220) is connected to the spraying mechanism through the rotating joint (3221).

14. The elevated fire extinguishing system suitable for a few-man attended substation according to claim 1, characterized in that, The first compressed air foam generating module (2) comprises an electric chassis assembly, an upper assembly, a liquid tank assembly (22), a water supply assembly (23), a foam liquid supply assembly (24), a gas supply assembly (25) and a gas-liquid mixing assembly (26); The electric chassis assembly is provided with the upper assembly, the upper assembly and the electric chassis assembly jointly enclose a space, the liquid tank assembly (22) is arranged in the space, the liquid tank assembly (22) is provided with a first output end and a second output end, the first output end is connected to the input end of the water supply assembly (23), the second output end is connected to the input end of the foam liquid supply assembly (24), the output ends of the water supply assembly (23), the foam liquid supply assembly (24) and the gas supply assembly (25) are connected to the input end of the gas-liquid mixing assembly (26).

15. The elevated fire extinguishing system suitable for a few-man attended substation according to claim 14, characterized in that, The electric chassis assembly comprises a first frame platform (201), a steering unit (202), a driving unit (203), a power module (204) and a brake unit (205). From the moving direction of the electric chassis assembly, the steering unit (202) and the driving unit (203) are sequentially arranged on the bottom of the first frame platform (201) from front to back, the brake unit (205) is arranged on one side of the driving unit (203) of the bottom of the first frame platform (201), and the steering unit (202) is arranged on the front side of the first frame platform (201); the power module (204) is arranged on the first frame platform (201), and the power module (204) is configured to supply power to the electric chassis assembly, the water supply assembly (23), the foam liquid supply assembly (24), the gas supply assembly (25) and the control module.

16. The elevated fire extinguishing system suitable for a few-man attended substation according to claim 14, characterized in that, The upper assembly comprises a front cover (210), an intermediate cover (211) and a tail cover (212), and the front cover (210), the intermediate cover (211) and the tail cover (212) are sequentially arranged on the electric chassis assembly to form a space.

17. The elevated fire extinguishing system for a reduced man-watt substation according to claim 14, characterized in that, The liquid tank assembly (22) comprises a water tank (220), a water inlet (221), a water outlet (222), a first breathing valve (223), a foam liquid tank (224), a liquid inlet (225), a foam liquid outlet pipe (226), a second breathing valve (227), a first liquid level sensor (228), a second liquid level sensor (229) and a liquid level digital display table; The water tank (220) is provided with the water inlet (221) and the water outlet (222); the foam liquid tank (224) is arranged on one side of the water tank (220), the foam liquid tank (224) is provided with the liquid inlet (225), and the foam liquid tank (224) is communicated with the foam liquid outlet pipe (226) on one side; the second breathing valve (227) is arranged on the foam liquid tank (224). The water tank (220) is provided with the first liquid level sensor (228) and the liquid level digital display table, and the second liquid level sensor (229) is arranged on the foam liquid tank (224); the second liquid level sensor (229) and the first liquid level sensor (228) are electrically connected with the liquid level digital display table.

18. The elevated fire extinguishing system suitable for a few-man attended substation according to claim 14, characterized in that, The water supply assembly (23) comprises a first water inlet pipe (230), a first electric three-way selector valve (231), a fire pump group (232), a water outlet pipe (233), a first check valve (234), a second water inlet pipe (235), a filter (236), a third water inlet pipe (237) and a first fire quick connector (238); The first water inlet pipe (230) is connected with one end of the first output end, and the other end of the first water inlet pipe (230) is connected with the first inlet end of the first electric three-way selector valve (231); the outlet end of the first electric three-way selector valve (231) is connected with one end of the water outlet pipe (233), and along the water conveying direction, the fire pump group (232) and the first check valve (234) are arranged on the water outlet pipe (233) in sequence; the other end of the water outlet pipe (233) is connected with the first check valve (234), and the first check valve (234) is connected with the gas-liquid mixing assembly (26); the second inlet end of the first electric three-way selector valve (231) is connected with one end of the second water inlet pipe (235), the other end of the second water inlet pipe (235) is connected with the outlet end of the filter (236), the inlet end of the filter (236) is connected with one end of the third water inlet pipe (237), and the other end of the third water inlet pipe (237) is connected with the first fire quick connector (238).

19. The elevated fire extinguishing system suitable for a few-man attended substation according to claim 14, characterized in that, The foam liquid supply assembly (24) comprises a foam liquid pipeline (240), a self-suction foam liquid pump (241) and a second check valve (242); the foam liquid outlet pipe (226) is connected with the gas-liquid mixing assembly (26) through the foam liquid pipeline (240), and along the foam liquid conveying direction, the self-suction foam liquid pump (241) and the second check valve (242) are arranged on the foam liquid pipeline (240) in sequence.

20. The elevated fire extinguishing system suitable for a reduced man-watt substation according to claim 14, characterized in that, The gas supply assembly (25) comprises a piston air compressor (250), a valve block (251), a safety valve (252), a third check valve (253), a flow sensor (254) and a gas conveying pipeline (255). The piston air compressor (250) is connected with the gas-liquid mixing assembly (26) through the gas pipeline (255), and the gas pipeline (255) is sequentially provided with the valve block (251), the third one-way valve (253) and the flow sensor (254) in the gas conveying direction; the safety valve (252) is arranged on the valve block (251).

21. The elevated fire extinguishing system suitable for a reduced man-watt substation according to claim 14, characterized in that, The gas-liquid mixing assembly (26) comprises a turbulence-free fourth water inlet pipe (260), a tee joint (261), a foam liquid inlet pipe (262), a mixing chamber (263), a high-pressure air inlet pipe (264), a compressed air foam liquid outlet pipe (265) and a second fire-fighting quick connector (266). The first one-way valve (234) is connected with one end of the fourth water inlet pipe, the other end of the fourth water inlet pipe is connected with the tee joint (261), the lower interface of the tee joint (261) is connected with the foam liquid pipeline (240), the left interface of the tee joint (261) is connected with the mixing chamber (263), the mixing chamber (263) is connected with the gas pipeline (255) through the high-pressure air inlet pipe (264), the outlet of the mixing chamber (263) is connected with one end of the compressed air foam liquid outlet pipe (265), the control module is arranged on the compressed air foam liquid outlet pipe (265), and the other end of the compressed air foam liquid outlet pipe (265) is connected with the second fire-fighting quick connector (266).

22. The elevated fire extinguishing system suitable for a reduced man-watt substation according to claim 1, characterized in that, The water source supply module (1) comprises an electric forklift (10), a fire-fighting water module (11) and a water suction pipe (12), the water source supply module (1) is arranged on the electric forklift (10), and the water suction pipe (12) is arranged on the water source supply module (1).

23. A method for the use of the elevated fire extinguishing system for the substation with reduced number of staff according to any of claims 1 to 22, characterized in that, The method comprises the following steps: Confirming the height of the fire extinguishing position; sequentially connecting the water source supply module, the first compressed air foam generating module and the elevated jet robot; driving the first compressed air foam generating module and controlling the elevated jet robot to move to the allowed fire extinguishing position, aligning the fire extinguishing position, and spraying fire extinguishing.

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