1738 results about "Firewater" patented technology

The invention relates to the technical field of fire-fighting monitoring, in particular to a fire-fighting water system fault detection and early warning method and system based on the fire-fighting Internet of Things, and the method comprises the steps: 1, periodically collecting pressure data through pressure sensors disposed at a fire-fighting water pump outlet, a pipe network main pipe branch point and the most unfavorable tail end; 2, according to the current valve opening degree, the pump state and historical normal working condition data, theoretical pressure expected values and dynamic allowable deviation zones of all nodes are generated; 3, when actually measured pressure deviates from a theoretical pressure expected value and exceeds a dynamic allowable deviation band, marking abnormal nodes, reversely constructing a fault propagation tree along the topological model, and allocating weight factors for associated nodes according to fault types; and 4, triggering graded early warning based on the number of the abnormal nodes, the fault propagation path and the weight factor accumulated value. And the system can automatically take measures when a fault occurs through an equipment linkage function, so that the efficient operation of the fire fighting water system is guaranteed, and the efficiency and safety of fire emergency response are improved.

The invention, which relates to the technical field of fire safety, discloses a multi-modal intelligent identification method for fire-fighting hidden troubles based on a large model, comprising the following steps: S1, acquiring multi-source heterogeneous feature data through a sensor network deployed in a fire-fighting water pump room to obtain an initial feature set; s2, performing unified scale conversion on the initial feature set, calculating heterogeneous bridging parameters according to the environmental parameters and the equipment operation data, constructing a fusion feature vector, inputting the fusion feature vector into a preset neural network for feature weight adaptive adjustment, and outputting an adjusted weight vector; according to the fire-fighting hidden danger intelligent identification method based on the large-model multi-mode, intelligent closed loop from hidden danger identification to prevention and control decision making is realized, and the intelligent, dynamic and precise management level of a fire-fighting safety system is comprehensively improved.

When the intelligent fire-fighting unmanned aerial vehicle cluster system works, the method comprises the following steps that 1, an intelligent fire-fighting unmanned aerial vehicle cluster detects a fire scene and searches a water source near the fire scene, and an optimal route is searched between the water source and the fire scene to lay a pressurizing water pump and a fire hose; 2, the intelligent fire-fighting unmanned aerial vehicle cluster controls a fire-fighting nozzle to conduct fire extinguishing operation, and the positions of a pressurizing water pump and a fire hose are adjusted according to fire behavior changes of a fire scene; and 3, the intelligent fire-fighting unmanned aerial vehicle cluster performs handover control on a fire-fighting nozzle, a pressurizing water pump and a fire-fighting hose in turn, and fuel oil is supplemented to the pressurizing water pump until fire extinguishing operation is finished. A fire-fighting water supply channel can be laid between a water source and a fire scene at an ultra-fast speed, the fire extinguishing operation speed is high, manual intervention is not needed, and nearly infinite fire-fighting water can be continuously provided.

A rapid fire extinguishing device for a new energy automobile comprises a fire extinguishing cover device capable of horizontally stretching or rotationally stretching, the fire extinguishing cover device comprises a flame-retardant fabric, the inner side of the flame-retardant fabric is connected with a horizontal stretching framework or a rotary stretching framework in a wrapping mode, and the horizontal stretching framework or the rotary stretching framework is of a hollow pipeline structure. The hollow pipeline structure is connected with the fire-fighting water spray head and the fire-fighting water connector, a pressure relief skylight is formed in the surface of the flame-retardant fabric, a water blocking fence surrounding the new energy automobile is arranged at the bottom of the fire extinguishing cover device, and fire-fighting water sprayed by the fire-fighting water spray head is accumulated between the water blocking fence and the new energy automobile to form a water pool to soak the new energy automobile. According to the rapid fire extinguishing device for the new energy automobile, the whole automobile is rapidly wrapped with the fire extinguishing cover device on the basis of portability, air isolation is achieved, then multi-angle jet fire extinguishing is achieved through the telescopic framework, the soaking fire extinguishing performance on the automobile is achieved through the water blocking fence, and finally the explosion risk caused by gas accumulation is prevented through the pressure relief skylight.

The utility model discloses a fire-fighting water pipe pressure testing device, and specifically relates to the fire-fighting water pipe testing technology field, the fire-fighting water pipe pressure testing device comprises a connecting seat and a support bench arranged on the upper part of the connecting seat, the top end of the connecting seat is provided with a water storage tank, the connecting seat is provided with a device groove beside the water storage tank, and the device groove is internally provided with a high pressure water pump. A water supply pipe is fixedly installed at the output end of the high-pressure water pump, and the other end of the water supply pipe communicates with the water distribution box. One end of each hose is fixedly provided with a threaded pipe disc matched with the corresponding second threaded hole, and the other end of each hose is fixedly provided with a flange plate. According to the pressure testing equipment for the fire-fighting water pipes, in the actual use process, the high-pressure water pump is arranged for fire fighting, water in the water storage tank is input into the water distribution tank at high pressure through the high-pressure water pump, the multiple hoses are arranged on the water distribution tank, the fire-fighting water pipes are connected with the hoses respectively, and therefore pressure testing is conducted on the multiple fire-fighting water pipes at the same time.

The invention provides a fire hose sealing effect detection device for fire detection, and relates to the technical field of fire detection equipment. The fire hose sealing effect detection device for fire detection comprises a base, a water tank is arranged at the upper end of the base, two first vertical rods are symmetrically and fixedly connected to the interior of the water tank, a first movable plate is slidably connected between the two first vertical rods, and a pressing block is fixedly connected to the lower end of the first movable plate. And two second vertical rods are fixedly connected to the interior of the water tank, a second movable plate is slidably connected between the two second vertical rods, and a scraping plate is fixedly connected to the lower surfaces of the two second movable plates. Through the structure, impurities on the surface of the fire hose can be treated, and the detection effect of the airtightness of the fire hose is guaranteed.

The invention discloses a container ship magnetic type fire extinguishing robot system, which relates to the technical field of robots and comprises a fire hose module, a fire robot and a remote control terminal module. Stable movement of the fire extinguishing robot is realized through a magnetic adsorption technology, fire source positioning and fire extinguishing precision is improved by combining real-time acquisition and analysis of environmental data, the navigation positioning module ensures accurate navigation of the robot, the data analysis module identifies key factors, and the task scheduling and control module optimizes a fire extinguishing strategy. The operation risk is reduced and the fire extinguishing efficiency is improved, so that the response time of the system is effectively shortened, the limitation of traditional fire extinguishing equipment is solved, and the safety and reliability of fire extinguishing operation are improved.

The utility model discloses a quick leaking stoppage device for a fire hose, which comprises a second connecting fastener, the second connecting fastener is arranged on one side of a first connecting fastener, the cross section of the first connecting fastener and the cross section of the second connecting fastener are arc-shaped, the first connecting fastener is provided with a threaded hole, and the second connecting fastener is provided with a threaded hole. A connecting bolt is arranged on one side of the second connecting fastener, and the connecting bolt and the second connecting fastener are arranged in a penetrating mode. The air bag is arranged on the inner side of the first connecting fastener and the inner side of the second connecting fastener, an inflation and deflation nozzle is arranged outside the first connecting fastener and the second connecting fastener, the inflation and deflation nozzle, the first connecting fastener and the second connecting fastener are connected into a whole, and the inflation and deflation nozzle communicates with the air bag. The leaking stoppage device is arranged outside the fire hose in a sleeving mode, air is injected into the air bag, the air bag is opened by facing the injected air, the opened air bag makes close contact with the water leakage position of the fire hose, a damaged opening of the fire hose is blocked, and rapid leaking stoppage of the fire hose is achieved.

The invention relates to the technical field of fire hose strength detection, in particular to a fire hose tensile strength detection device for fire detection and a method thereof.The fire hose tensile strength detection device comprises a base, a partition plate is integrally formed in the middle of the inner side of the base, a blocking groove is formed in one side of the partition plate, and the interior of the base is divided into a water storage cavity and a dry cavity by the partition plate; and a driving assembly is arranged in the dry cavity, and the top end of the driving assembly is movably connected with an eccentric adjusting assembly. According to the improved device and method for detecting the tensile strength of the fire hose for fire detection, through mutual cooperation of the driving assembly, the eccentric adjusting assembly and the water injection assembly, the tensile property of the fire hose under the conditions of no water injection and water injection can be detected; meanwhile, the detection comprehensiveness can be improved by changing the direction of the tensile force applied to the water hose in the detection process, and the radial extrusion assembly can simulate the situation that the water hose is externally treaded or impacted in actual use, so that the diversity of detection items is improved.

The invention belongs to the technical field of fire fighting, and particularly relates to a groove connection type fire pump adapter which comprises a main body, a hand wheel, a valve rod and a valve plate are arranged on the main body, a supporting piece comprises a fixing block connected with the main body, and a supporting plate abutting against the valve plate is rotationally connected to the fixing block. The bottom of the fixing block is provided with an annular part for containing the supporting plate to rotate downwards, the rotating piece rotates to drive the pushing block at the bottom to rotate synchronously and be embedded into the first clamping groove, meanwhile, the arc face abuts against the arc face on the rack, and therefore the whole rack is pushed to move backwards, and the meshed driving wheel is driven to be transmitted to the transmission wheel. The transmission wheel rotates synchronously and drives the supporting plate to rotate downwards, so that the aperture of the supporting piece abutting against the valve plate is enlarged, water entering from the connector of the main body flows into the bottom pipeline of the main body more smoothly, and meanwhile, under the condition that the water flow is not changed, the connector of the bottom pipeline is enlarged, and water flow entering is not too rapid. Inlet flow speed is reduced, and water flow is more stable.

A battery rack according to the present disclosure includes a plurality of battery modules; a rack case having receiving portions, each receiving portion configured to and receive one of the plurality of battery modules at each predetermined height, and each receiving portion having a structure in which upper and lower sides and left and right sides are closed and front and rear sides are open; a fire fighting water supply pipe connected to each of the battery modules disposed in the receiving portions which supplies a fire fighting water when a fire occurs; and a drain guide disposed on an outer surface of the rack case including at least one surface of a front outer surface or a rear outer surface of the rack case, the drain guide being configured to guide drainage of the fire fighting water.

The invention discloses a wearable three-duct power single-person aircraft which comprises a power system, an avionics system, a man-machine interaction system, a safety lifesaving system and a wearable aircraft body. The power system adopts a three-duct pneumatic layout and is arranged in the shape of a Chinese character'pin ', two duct units on the front side are located on the two sides of the wearable machine body at the same height, and the mounting height of the duct unit on the rear side is higher than that of the duct unit on the front side; the man-machine interaction system is located on the left side of the wearable fuselage and the human head and used for manually controlling flight and monitoring the flight state. The safety lifesaving system is located on the upper portion of the wearable machine body and used for guaranteeing personnel safety in emergency. The aircraft has the characteristics of compact structure, high stability, simplicity and convenience in operation, good safety and the like.

Disclosed is a design method for a bridge main cable fire-fighting water curtain protection system, comprising the following steps: S1: a fire detector and spraying branch pipes are arranged along a bridge main cable, a plurality of water curtain nozzle groups for extinguishing fire of a bridge are arranged on the spraying branch pipes, the water curtain nozzle groups are connected to a water supply system, and the water supply system and the fire detector are electrically connected to a control system; S2: the arrangement distance and the spraying protection area of the water curtain nozzle groups are determined, water curtain spraying appearance curves under a set design pressure and flow rate are drawn on a vertical and horizontal coordinate grid diagram and on the basis of a provided water curtain nozzle spraying profile diagram, and it is ensured that the water curtain spraying appearance curves of two adjacent water curtain nozzles have an intersection point; and S3, each spraying branch pipe is connected to a corresponding water supply branch, each water supply branch is provided with a pressure reducing valve for controlling the water pressure of the corresponding spraying branch pipe, and the pressure reducing valve on each water supply branch needs to independently set an outlet pressure.

The utility model relates to the technical field of fire fighting equipment, and discloses a fire hose quick connecting and sealing device which comprises a connecting male head, the outer side of the connecting male head is sleeved with a connecting female head, the outer side of the connecting female head is fixedly sleeved with a fixing seat, a cavity is formed in the fixing seat, and a piston mechanism is arranged in the cavity; a sealing seat is arranged on the inner wall of the female connector, a mounting groove is formed in the inner wall of the sealing seat, a sealing mechanism is arranged in the mounting groove, a groove is formed in the outer side of the male connector, and a limiting mechanism is arranged between the groove and the female connector. Compared with the prior art, the fire hose has the following advantages and effects that by arranging the sealing mechanism, a tiny gap between the connecting male head and the connecting female head can be effectively filled through the expanded sealing air bag, the purpose of preventing fire fighting water from leaking from the connecting part under the pressure effect is achieved, and therefore the sealing performance and reliability of the fire hose during water passing are guaranteed, and the service life of the fire hose is prolonged. And a powerful guarantee is provided for smooth fire-fighting operation.

The invention relates to the technical field of fire-fighting navigation systems, and discloses a high-precision Beidou navigation system based on fire-fighting water source positioning. A water source feature acquisition module of the system acquires fire hydrant and underground pipe network surface material reflectivity data through a multispectral imager, and generates a water source feature vector set; the Beidou signal enhancement module is used for carrying out error correction on the original Beidou satellite signal by adopting a carrier phase difference technology; the dynamic base station network is used for deploying a plurality of base station nodes in an urban building dense area, and each node synchronously receives Beidou signals, calculates atmospheric delay errors and transmits the atmospheric delay errors to the central processing module through a wireless ad hoc network; the three-dimensional terrain matching module is used for carrying out iterative alignment on the building contour data scanned by the laser radar and the urban GIS elevation data, and establishing a centimeter-level precision three-dimensional model of the surrounding environment of the fire-fighting water source; and the multi-source data fusion module is used for receiving all the data and outputting optimal positioning coordinates of the fire-fighting water source.

The invention provides a fire pool defect detection method and system. The method comprises the following steps: acquiring image data and angle data of a pool wall and pose data of a robot; performing image processing on the image data, and performing defect identification on an image processing result by using a convolutional neural network to obtain defect information; the defect information comprises the pixel offset of the defect position and the defect type; and performing coordinate calculation according to the pixel offset, the angle data and the pose data to obtain defect positioning. According to the invention, the robot is utilized to obtain the image data, angle data and pose data of the pool wall, and the convolutional neural network is combined to carry out defect identification and positioning, so that an automatic and high-precision detection process is realized. The problems of potential safety hazards, low efficiency, low accuracy and high operation cost caused by dependence on manual operation in a traditional fire pool defect inspection method are effectively solved.

The invention provides an emergency rescue method and device for battery thermal diffusion. The method comprises the steps that when a preset thermal runaway condition is met, an early warning signal of a thermal runaway event is received; the early warning signal is a first-stage emergency rescue measure; the early warning signal is used for prompting a user in the vehicle to get off to avoid danger; the battery management system is controlled, and a second-stage emergency rescue measure of liquid cooling circulation is awakened; after the liquid cooling circulation is started for cooling for a preset time, judging whether the power battery system is subjected to thermal runaway diffusion or not; if it is determined that thermal runaway diffusion exists, third-stage emergency rescue measures are started; the third-stage emergency rescue measure is used for indicating that an anti-explosion valve of the power battery system is connected with an anti-explosion valve adapter interface on the electric automobile, and opening a fire hose connected with the anti-explosion valve adapter interface, so that a large amount of water continuously enters the power battery system. According to the scheme, thermal runaway diffusion of the power battery system of the electric vehicle can be effectively controlled and prevented, and the loss is reduced to the minimum.

The invention discloses a test device for detecting the pressure-bearing performance of a fire hose, and relates to the technical field of fire hose pressure-bearing detection.The test device comprises a main frame, the outer wall of one side of the main frame is fixedly connected with a side frame, and the top of the main frame is provided with a butt joint pipe used for fixedly and hermetically connecting a hose body; a fixing plate is arranged on the top of the main frame, and the butt joint pipe is fixedly connected with the fixing plate. According to the device, when a worker bends the water hose body to a certain angle and then stops bending, through the self-locking performance between a screw rod and a threaded sleeve, it can be guaranteed that the two fixing plates do not displace in the subsequent water hose body stamping process, and then it is guaranteed that the water hose body is always located at the set bending angle for pressure bearing detection; and the problems of unstable detection conditions and data deviation caused by the bending angle change due to the displacement of the fixed plate are avoided.

The utility model discloses a fire-fighting reel capable of adjusting belt releasing speed, which comprises a roller and a suspension support, the suspension support is fixedly connected with a rotary joint, the rotary end of the rotary joint is fixedly sleeved with the roller, and a fire-fighting water belt is wound on the roller. Then the elastic force of the spring is changed, so that the extrusion force of the limiting block on the fire hose can be adjusted, the magnitude of the force required for pulling the fire hose is changed, the release speed of the fire hose can be changed under the action of the same pulling force, and similarly, the release speed of the fire hose can be changed by adjusting the extrusion force of the limiting block on the fire hose; under the condition that the fire hose is pulled out at the same speed, more labor can be saved, when the fire hose is not used, the extrusion force of the limiting block on the fire hose is increased, water in the fire hose can be extruded out and the water outlet end of the fire hose can be fixed when the fire hose is taken up, and a child is prevented from pulling the fire hose to play with the fire hose.

The invention discloses a commercial linkage energy-saving system and a control method. The commercial linkage energy-saving system comprises a controller, a fire pool, a heat pump, a boiler, a hot water tank, a first plate heat exchanger and a second plate heat exchanger. The fire pool is communicated with the first plate heat exchanger through a first water supply pipeline and a first water return pipeline, the second plate heat exchanger is communicated with the heat pump through a second water supply pipeline and a second water return pipeline, and the boiler is communicated with the second water supply pipeline through a third water supply pipeline and a third water return pipeline. And the fire pool is communicated with the second water supply pipeline through a fourth water supply pipeline. According to the commercial linkage energy-saving system and the control method, through cooperative arrangement of the controller, the fire pool, the heat pump, the boiler, the hot water tank, the first plate heat exchanger and the second plate heat exchanger, the efficiency of each device is effectively improved, energy conservation and emission reduction are achieved, and the operation cost is reduced.

The utility model discloses a multilayer compression-resistant wear-resistant fire hose, which comprises a support frame and a winding disc, a fire hose body is wound on the surface of the winding disc, the fire hose body comprises a rubber waterproof layer, the outer surface of the rubber waterproof layer is wrapped with an inner protective layer, and the outer surface of the inner protective layer is wrapped with an outer protective layer. The inner protective layer comprises a polyamide fiber layer and a polyester fiber layer, and the outer surface of the inner protective layer is wrapped with a TPU waterproof layer. The TPU waterproof layer and the rubber waterproof layer are arranged, so that double-layer waterproof protection is formed in the fire hose body, the waterproof sealing performance of the fire hose body in the using process is improved, and meanwhile, due to the arrangement of the outer protective layer, the fire hose body is prevented from being damaged. Due to the fact that the polyurethane wear-resistant coating and the aramid fiber layer in the outer protective layer both have good wear-resistant performance, double-layer wear-resistant protection is formed on the outer surface of the fire hose body, and the probability that the fire hose body is broken due to wear is reduced.

The invention discloses a lithium battery fire extinguishing system, and belongs to the technical field of lithium battery fire extinguishing, the lithium battery fire extinguishing system comprises an energy storage cabin, the energy storage cabin is used for arranging a plurality of battery clusters, each battery cluster comprises a plurality of stacked battery modules, a fire water monitor is installed in the energy storage cabin, and the fire water monitor sprays a fire extinguishing medium to any battery cluster; a water collecting tank is arranged at the bottom of the battery cluster and is used for collecting the fire extinguishing medium flowing down from a plurality of battery modules of the battery cluster; a liquid supply assembly is arranged in the water collecting tank, filling openings are formed in the outer box body of the battery module, and the liquid supply assembly supplies the fire extinguishing medium in the water collecting tank into any filling opening through a pipeline assembly. The device has battery cluster external fire extinguishing and battery module internal fire extinguishing medium filling functions, realizes cyclic utilization from external fire suppression to internal cooling of the battery module after the fire extinguishing medium is sprayed, and improves economical efficiency and reliability; the system is low in complexity and easy to overhaul and maintain; the modification cost is low.

An energy storage system according to the present disclosure includes at least one battery rack including a plurality of stacked battery modules; a container accommodating the at least one battery rack, wherein the container includes a bottom plate in which the at least one battery rack is disposed; and a fire fighting water collection chamber disposed lower than the bottom plate and having at least one side in communication with the bottom plate to allow a fire fighting water dropped from the at least one battery rack to enter.

The invention relates to the technical field of water tank temperature monitoring, in particular to a monitoring system for a temperature detector to detect the temperature of a water tank, which comprises an intelligent temperature control core management module, a heating effect self-adaptive optimization module and a temperature abnormity sound-light alarm module, setting a heating time interval A according to a specific heat capacity and power formula; the heating effect self-adaptive optimization module adjusts a heating time interval A to a heating time interval B through a time adjustment method, and outputs a control instruction and the heating time interval B to a heating fan; if the indoor temperature value B is larger than the upper limit of the temperature threshold value, the heating completion time is set as the starting time of the detection time threshold value, and in the northeast cold region, the temperature between the fire water tanks is influenced by various factors such as the outside air temperature and the operation state of a heating fan, and the detection time threshold value is adjusted; and the temperature inspection intelligent scheduling unit closely fits the actual change condition of the indoor temperature.

The utility model relates to the technical field of tunnel management, and discloses an unattended prefabricated intelligent management micro-station for a tunnel, which comprises a micro-station box body with a cuboid structure, and a door plate is arranged on the end surface of one side of the micro-station box body; a tunnel dimming control cabinet, a 19-inch cabinet, a fire alarm host cabinet and two micro-station internal reserved positions are arranged in the micro-station box body side by side; the 19-inch cabinet is internally provided with a switch, and a server and a station-level fire-fighting edge computing terminal which are in wired connection with the switch; a tunnel roller shutter door control box, a fire-fighting water level monitoring box and a fire-fighting water pump control box which are in wired connection with the station-level fire-fighting edge computing terminal are mounted in the micro-station box body in a wall-hung manner; the tunnel dimming control cabinet is in wired connection with a lighting device in the tunnel; the tunnel roller shutter door control box is in wired connection with a roller shutter door at a tunnel entrance and exit; the fire-fighting water level monitoring box is in wired connection with a water level monitor in a fire-fighting pool in the tunnel; the fire pump control box is in wired connection with a drainage system in the tunnel; and the fire alarm host cabinet is in wired connection with fire detection equipment in the tunnel. According to the utility model, a fabricated building design thought is adopted, and the tunnel intelligent management micro-station integrating functions of monitoring, management, emergency and the like is constructed in the form of a prefabricated cabin.

The invention belongs to the technical field of ship equipment, and discloses a fire-fighting unmanned ship for a narrow water area and a control method thereof.The ship body comprises a single-bottom single-deck longitudinal framework structure and a main transverse watertight bulkhead which are connected with each other, and a dynamic stable propelling device is arranged on the ship body and comprises double electric propelling mechanisms and a bow lateral propelling mechanism; the intelligent fire fighting operation device is arranged on the boat body and comprises a multi-source sensing mechanism, a fire water monitor and a self-protection water mist mechanism, the multi-source sensing mechanism comprises a fire source positioning assembly used for positioning a fire source, and the fire water monitor and the self-protection water mist mechanism can spray water based on positioning information of the fire source positioning assembly. The double electric propulsion mechanisms and the bow lateral thrust mechanism can cooperatively act to counteract recoil generated during operation of the fire water monitor. Through the arrangement, the fire-fighting unmanned ship for the narrow water area can adapt to the environmental characteristics of the narrow water area, and the operation safety, stability and fire extinguishing precision are improved.

The invention relates to the technical field of detection devices, and particularly discloses a fire hose tensile strength detection device for fire detection, which comprises a base shell, a baffle plate, a docking mechanism, a detection mechanism, a workpiece fixing mechanism, a lifting mechanism, a controller, water supply equipment, a carrying mechanical arm and a grating sensor, the butt joint mechanism is installed at the top end of the base shell and located at an opening in the front of the inner side of the baffle. The detection mechanism is installed at the top end of the base shell and located at the right end of the outer side of the baffle. The fire hose is accurately installed on a test position in an automatic mode, time consumption of repeated adjustment in the manual butt joint process is reduced, the overall efficiency of test work is greatly improved, actual working conditions are accurately simulated, the whole disc of fire hose is comprehensively detected, stretching tests in different directions are carried out in the water supply state, and the test efficiency is improved. The method can obtain the test data which more accords with the actual use scene, and enables the test result to have higher reliability and reference value.

The invention provides a water / foam circulating system, and relates to the technical field of emergency fire-fighting equipment around petrochemical fires, and the water / foam circulating system comprises a circulating device which is used for generating fire-fighting water / fire-fighting foam according to test requirements; and the water spraying device is connected with the circulating device and is used for spraying fire-fighting water / fire-fighting foam to the target spraying object. The water / foam circulation system provided by the invention can realize water / foam circulation, and the heat radiation tolerance limit value of the water / foam circulation system can be determined through a water / foam circulation test method.

The invention discloses an automatic fire hose collecting and arranging device and belongs to the technical field of fire fighting equipment. Comprising a side plate fixing frame which is detachably connected with a belt storage compartment side plate or an equipment box side plate of the fire fighting truck; the hand-held belt collecting mechanism mounting rack is fixed on the upper part of the mounting rack reciprocating displacement mechanism, the mounting rack reciprocating displacement mechanism is arranged on the side plate fixing frame, and the mounting rack reciprocating displacement mechanism and the side plate fixing frame form a sliding pair; the reciprocating displacement frame driving mechanism is arranged on the side plate fixing frame and is matched with the mounting frame reciprocating displacement mechanism; the hand-held belt collecting mechanism is arranged on the hand-held belt collecting mechanism mounting frame in a detachable connection manner; and the rolling cage type belt pressing mechanism is arranged on the hand-held belt collecting mechanism. The method has the advantages that good adaptability to different application environments is embodied; an ideal automation effect is embodied; and the automatic take-up and arrangement of the fire hose can be smoothly ensured.