Large-flow three-phase jet elevating fire truck

Abstract

The utility model discloses a large-flow three-phase jet elevating fire truck which comprises a chassis and an auxiliary beam fixedly installed at the top end of the chassis, supporting legs are fixedly installed at the bottom end of the auxiliary beam, a dry powder tank and a nitrogen tank are fixedly installed at the top end of the auxiliary beam, and the dry powder tank is communicated with the nitrogen tank. One end of the dry powder tank is communicated with a dry powder reel, and a main powder pipe is communicated between the dry powder tank and the dry powder reel. According to the utility model, superfine dry powder can be used for extinguishing fire through the nitrogen tank and the dry powder pipe, and the high-power diesel engine set and the medium-pressure centrifugal water pump are integrated together, so that the requirement of 200L / s high-flow anti-reburning fire extinguishing agent injection can be met, and the fire extinguishing agent can be continuously supplied by being matched with a remote water supply vehicle, a powder supply vehicle and a liquid supply vehicle; the fire monitor has the function of extinguishing the fire of the oil storage tank in a long range, fire extinguishing is performed corresponding to different burning fire materials and different fire extinguishing materials, and the fire extinguishing performance and efficiency are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fire trucks, in particular to a large-flow three-phase jet lifting fire truck. Background Art

[0002] Petrochemical enterprises involve many types and quantities of flammable and explosive materials, with complex production processes and high fire risks. Once a fire occurs, the burning speed is fast and the fire spreads rapidly, which can easily form a large-scale three-dimensional fire and easily re-ignite, making it very difficult to extinguish. Although the existing three-phase jet fire trucks have a high fire extinguishing efficiency, due to the limitation of the chassis carrying capacity, the loading capacity of the built-in ultra-fine dry powder and anti-reignition fire extinguishing agent is small, and the boom structure is the same as that of conventional high-rise jet fire trucks, without any enhanced design, resulting in the spray flow rate of the fire cannon being less than or equal to 100L / s, and the maximum range is 90 meters, which makes it difficult to continuously extinguish the fire of petrochemical oil storage tanks.

[0003] In order to effectively respond to the firefighting needs of petrochemical oil storage tank fires, it is necessary to develop a firefighting equipment that has a large flow rate, a high-lift arm, and can spray three-phase fire extinguishing agents, and cooperate with remote water supply vehicles, powder supply vehicles, and liquid supply vehicles to continuously supply fire extinguishing agents. The rapid cooling effect of large-flow fire cannons can solve the problem of oil storage tank fire fighting.

[0004] Patent document CN202892734U discloses a high-flow, high-pressure, long-range lifting fire truck, including a car chassis, a compartment fixed on the car chassis, a lifting spray mechanism and a central swivel joint respectively arranged at the rear of the car chassis, two or more multi-stage combined water pump drive systems are arranged in the compartment, each multi-stage combined water pump drive system is respectively connected to a pipeline system, a control system is arranged on the pipeline system, and the pipeline system is connected to the spray device arranged on the lifting spray mechanism through a central swivel joint. The beneficial effects of the utility model are that the flow rate is greatly increased, which can reach more than 160 liters / second; the range is greatly increased: it can reach more than 130 meters; and the shooting height is greatly increased.

[0005] As in the prior art of the above-mentioned patent, different fire extinguishing materials are required for different combustion media. However, the fire truck of the above-mentioned device can only extinguish fires by water and foam, and cannot realize the three-phase jet function. The fire extinguishing has high limitations and cannot adopt corresponding fire extinguishing materials according to the corresponding combustion medium. In addition, the three-phase jet high-rise fire truck in the prior art does not have large flow and long-range functions, and the oil tank fire cannot be effectively controlled. Utility Model Content

[0006] The utility model aims to provide a large-flow three-phase jet lift fire truck to solve the above-mentioned deficiencies in the prior art.

[0007] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a large-flow three-phase jet lifting fire truck, comprising a chassis and a sub-beam fixedly installed on the top of the chassis, a support leg fixedly installed on the bottom end of the sub-beam, a dry powder tank and a nitrogen tank fixedly installed on the top of the sub-beam, the dry powder tank and the nitrogen tank are connected, one end of the dry powder tank is connected and installed with a dry powder reel, a main trunk powder pipe is connected and installed between the dry powder tank and the dry powder reel, a turntable and a central swivel joint are arranged at the end of the top of the sub-beam away from the dry powder tank, a boom is fixedly installed on the top of the turntable, and the boom A telescopic water pipe and a three-phase jet fire monitor are installed on it, one end of the main powder pipe is connected with the three-phase jet fire monitor through a central swivel joint, a water pump, a gun water pipe and an engine unit are fixedly installed on the top of the sub-beam, the water pump, the gun water pipe and the engine unit are all arranged between the nitrogen tank and the turntable, the water pump is connected to the engine unit, the input end of the water pump is connected to an external water supply source (not shown in the figure), the output end of the water pump is connected to the gun water pipe, the gun water pipe is connected to the telescopic water pipe and the three-phase jet fire monitor through a central swivel joint, and a rotating component is arranged on the arm.

[0008] As a further description of the above technical solution: the rotating assembly includes a left water pipe, a right water pipe, a left clamp, a right clamp, a hollow pin shaft and a sleeve, the telescopic water pipe is arranged on the right side of the arm, the telescopic water pipe is connected to the right water pipe, one end of the right water pipe is connected and installed with a water pipe stator, a right clamp is connected between the water pipe stator and the right water pipe, one end of the water pipe stator is rotatably connected to a water pipe rotor, one end of the water pipe rotor passes through the hollow pin shaft on the sleeve and is connected to the left water pipe, and the water pipe rotor and the left water pipe are fixedly connected by a left clamp.

[0009] As a further description of the above technical solution: the main powder tube includes a left dry powder tube and a right dry powder tube, the right dry powder tube is connected to the left dry powder tube fixedly installed on the arm through a flange, one end of the left dry powder tube is fixedly connected to the dry powder tube stator through a flange, and one end of the dry powder tube stator is rotatably connected to the dry powder tube rotor.

[0010] As a further description of the above technical solution: the inner diameter of the telescopic water pipe is set to DN200, and the inner diameter of the main powder pipe is set to DN100.

[0011] As a further description of the above technical solution: the structure of the boom is set to two telescopic straight arms and one curved arm, and the first arm and the second arm are telescopically extended by a telescopic cylinder.

[0012] As a further description of the above technical solution: the water pump is configured as a medium-pressure centrifugal water pump, and the engine unit is configured as a diesel engine unit.

[0013] The utility model provides a large-flow three-phase jet lifting fire truck. The device has the following beneficial effects: in addition to being able to extinguish fires using ultrafine dry powder through nitrogen tanks and dry powder tubes, the device also integrates a high-power diesel engine set and a medium-pressure centrifugal water pump, which can not only meet the demand for 200L / s large-flow anti-reignition fire extinguishing agent injection, but also cooperate with remote water supply vehicles, powder supply vehicles, and liquid supply vehicles for continuous fire extinguishing agent supply, and use the fire cannon to extinguish oil tank fires at a long range, realizing the corresponding different burning and igniting materials. The corresponding different fire extinguishing materials are used to extinguish fires, thereby increasing the fire extinguishing performance and efficiency. The output flow of the medium-pressure centrifugal water pump is 200L / s, and the output pressure can reach 1.7MPa, which can meet the pressure loss consumption of the lifting arm. The high-power diesel engine set independently meets the water pump shaft power demand. In order to save space and radiator, an eccentric parallel compact arrangement is adopted. The diameter of the water pipe from the water pump output end to the three-phase jet fire cannon inlet end is not less than DN200. In order to avoid the easy damage of the braided steel wire hose with a large bending radius, a hollow pin shaft and a rotating joint are adopted to realize the function of free flipping of the crank arm.

[0014] It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

[0015] This application document provides an overview of various implementations or examples of the technology described in the present disclosure, and is not a comprehensive disclosure of the entire scope or all features of the disclosed technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall main structure of a large-flow three-phase jet lift fire truck proposed by the utility model;

[0017] Figure 2 It is a schematic diagram of the main structure of the device on the chassis of the utility model;

[0018] Figure 3 It is a schematic cross-sectional structure diagram of the hollow pin shaft and the rotary joint of the utility model.

[0019] Legend:

[0020] 1. Chassis; 2. Sub-beam; 3. Dry powder tank; 4. Outrigger; 5. Nitrogen tank; 6. Gun water pipe; 7. Water pump; 8. Engine unit; 9. Main powder pipe; 10. Dry powder reel; 11. Turntable; 12. Center swivel joint; 13. Boom; 14. Telescopic water pipe; 15. Three-phase jet fire monitor; 16. Left water pipe; 17. Left clamp; 18. Hollow pin shaft; 19. Bushing; 20. Water pipe rotor; 21. Water pipe stator; 22. Right clamp; 23. Right water pipe; 24. Dry powder pipe rotor; 25. Dry powder pipe stator; 26. Left dry powder pipe; 27. Right dry powder pipe. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] Reference Figure 1-3 A high-flow three-phase jet lifting fire truck comprises a chassis 1 and a sub-beam 2 fixedly mounted on the top of the chassis 1, a leg 4 fixedly mounted on the bottom of the sub-beam 2, a dry powder tank 3 and a nitrogen tank 5 fixedly mounted on the top of the sub-beam 2, the dry powder tank 3 and the nitrogen tank 5 are connected, a dry powder reel 10 is connected and mounted on one end of the dry powder tank 3, a main powder pipe 9 is connected and mounted between the dry powder tank 3 and the dry powder reel 10, a turntable 11 and a central swivel joint 12 are arranged on the top of the sub-beam 2 away from the dry powder tank 3, a boom 13 is fixedly mounted on the top of the turntable 11, and a telescopic water pipe 14 and three-phase jet fire monitor 15, one end of the main powder pipe 9 is connected to the three-phase jet fire monitor 15 through a central swivel joint 12, a water pump 7, a gun water pipe 6 and an engine group 8 are fixedly installed on the top of the sub-beam 2, and the water pump 7, the gun water pipe 6 and the engine group 8 are all arranged between the nitrogen tank 5 and the turntable 11, the water pump 7 is connected to the engine group 8, the input end of the water pump 7 is connected to an external water supply source (not shown in the figure), the output end of the water pump 7 is connected to the gun water pipe 6, and the gun water pipe 6 is connected to the telescopic water pipe 14 and the three-phase jet fire monitor 15 through a central swivel joint 12, The arm 13 is provided with a rotating assembly; the three-phase jet fire monitor 15 and the center swivel joint 12 are both prior art, so they are not described in detail. The sub-beam 2 and the leg 4 are arranged to provide fixed support for the device above the chassis 1. The nitrogen tank 5 is connected to the dry powder tank 3, and pushes the ultra-fine dry powder to be output to the dry powder reel 10 through the dry powder pipe, or directly outputs it to the three-phase jet fire monitor 15 at the head of the arm 13 through the center swivel joint 12 through the dry powder pipe. The three-phase jet fire monitor 15 extinguishes the fire with ultra-fine dry powder, and at the same time, the water pump 7 transports the external water supply source to the center swivel joint 12 and then to the telescopic water pipe 14 through the gun water pipe 6, and finally It is connected to the three-phase jet fire cannon 15 at the head of the boom 13, and anti-reignition fire extinguishing agent can be added to the inside of the external water supply source. Under the action of the engine group 8, the water pump 7 is used to spray water and anti-reignition fire extinguishing agent through the three-phase jet fire cannon 15 to extinguish the fire. In summary, in addition to being able to use ultra-fine dry powder through the nitrogen tank 5 and the dry powder tube for fire extinguishing, the above-mentioned device also integrates the engine group 8 and the water pump 7 together, which can not only meet the needs of large-flow anti-reignition fire extinguishing agent injection, but also can cooperate with remote external water supply vehicles, powder supply vehicles, and liquid supply vehicles for continuous supply of fire extinguishing agent, and use the fire cannon to extinguish oil tank fires at a long range.

[0023] As a preferred technical solution of this embodiment, the rotating assembly includes a left water pipe 16, a right water pipe 23, a left clamp 17, a right clamp 22, a hollow pin shaft 18 and a sleeve 19. The telescopic water pipe 14 is arranged on the right side of the arm 13. The telescopic water pipe 14 is connected to the right water pipe 23. One end of the right water pipe 23 is connected and installed with a water pipe stator 21. A right clamp 22 is connected between the water pipe stator 21 and the right water pipe 23. One end of the water pipe stator 21 is rotatably connected to a water pipe rotor 20. One end of the water pipe rotor 20 passes through the hollow pin shaft 18 on the sleeve 19 and is connected to the left water pipe 16. The water pipe rotor 20 and the left water pipe 16 are fixedly connected by the left clamp 17. A crank arm is arranged on the left side of the arm 13, and the left water pipe 16 is connected to the crank arm through a steel wire hose.

[0024] As the preferred technical solution of this embodiment, the main powder tube 9 includes a left dry powder tube 26 and a right dry powder tube 27. The right dry powder tube 27 is connected to the left dry powder tube 26 fixedly installed on the arm 13 through a flange. One end of the left dry powder tube 26 is fixedly connected to the dry powder tube stator 25 through a flange, and one end of the dry powder tube stator 25 is rotatably connected to the dry powder tube rotor 24; one end of the dry powder tube rotor 24 is connected to the crank arm through a steel wire hose. Since the above-mentioned device needs to continuously adjust the rotation angle, in order to avoid the braided steel wire hose with a large bending radius from being easily damaged, the above-mentioned device adopts a hollow pin shaft 18 and a rotating joint to realize the function of free flipping of the crank arm, wherein the water pipe rotor 20 rotates around the water pipe stator 21 at the rotating position, and the dry powder tube rotor 24 rotates around the dry powder tube stator 25 at the rotating position.

[0025] As the preferred technical solution of this embodiment, the inner diameter of the telescopic water pipe 14 is set to DN200, and the inner diameter of the main powder pipe 9 is set to DN100; in order to meet the use requirements of large-flow fire extinguishing of the boom 13, the pipeline diameter before the fire monitor cannot be less than DN200, and the central swivel joint 12 connecting the waterway to the boom 13 includes 1 DN200 waterway channel, 1 DN100 dry powder channel, 5 oilway channels and 16 line bundle channels.

[0026] As the preferred technical solution of this embodiment, the structure of the boom 13 is arranged as two-section telescopic straight arms and one-section curved arm, and the curved arm is rotatably connected to one end of one of the two telescopic straight arms. The structures of the two telescopic straight arms and the one curved arm are both existing technologies. The first arm and the second arm are telescopically extended and retracted by telescopic cylinders, so they are not described in detail. The telescopic water pipe 14 is located on the left and right sides of the boom 13 for synchronous extension and retraction.

[0027] As the preferred technical solution of this embodiment, the water pump 7 is configured as a medium-pressure centrifugal water pump with an output flow rate of 200L / s and an output pressure of up to 1.7MPa, which can meet the pressure loss consumption of the lifting arm 13. The engine group 8 is configured as a high-power diesel engine group, which can independently meet the power demand of the water pump 7 shaft. In order to save space and the radiator, an eccentric parallel compact arrangement is adopted. The medium-pressure centrifugal water pump and the high-power diesel engine group are both existing technologies, so they are not described in detail.

[0028] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A high-flow three-phase jet lift fire truck, comprising a chassis (1) and a sub-beam (2) fixedly mounted on the top of the chassis (1), characterized in that: A support leg (4) is fixedly mounted on the bottom end of the sub-beam (2); a dry powder tank (3) and a nitrogen tank (5) are fixedly mounted on the top end of the sub-beam (2); the dry powder tank (3) and the nitrogen tank (5) are connected; a dry powder reel (10) is connectedly mounted on one end of the dry powder tank (3); a main powder pipe (9) is connectedly mounted between the dry powder tank (3) and the dry powder reel (10); a turntable (11) and a central swivel joint (12) are arranged at the top end of the sub-beam (2) away from the dry powder tank (3); a boom (13) is fixedly mounted on the top end of the turntable (11); a telescopic water pipe (14) and a three-phase jet fire monitor (15) are mounted on the boom (13); the main powder pipe (9 ) is connected to a three-phase jet fire monitor (15) through a central swivel joint (12); a water pump (7), a gun water pipe (6) and an engine group (8) are fixedly installed on the top of the auxiliary beam (2); the water pump (7), the gun water pipe (6) and the engine group (8) are all arranged between the nitrogen tank (5) and the turntable (11); the water pump (7) is connected to the engine group (8); the input end of the water pump (7) is connected to an external water supply source; the output end of the water pump (7) is connected to the gun water pipe (6); the gun water pipe (6) is connected to a telescopic water pipe (14) and a three-phase jet fire monitor (15) through a central swivel joint (12); and a rotating component is arranged on the arm (13).

2. A high-flow three-phase jet lift fire truck according to claim 1, characterized in that: The rotating assembly comprises a left water pipe (16), a right water pipe (23), a left clamp (17), a right clamp (22), a hollow pin shaft (18) and a shaft sleeve (19); the telescopic water pipe (14) is arranged on the right side of the arm (13); the telescopic water pipe (14) is connected to the right water pipe (23); one end of the right water pipe (23) is connected to a water pipe stator (21); a right clamp (22) is connected between the water pipe stator (21) and the right water pipe (23); one end of the water pipe stator (21) is rotatably connected to a water pipe rotor (20); one end of the water pipe rotor (20) passes through the hollow pin shaft (18) on the shaft sleeve (19) and is connected to the left water pipe (16); the water pipe rotor (20) and the left water pipe (16) are fixedly connected via a left clamp (17).

3. A high-flow three-phase jet lift fire truck according to claim 1, characterized in that: The main powder tube (9) comprises a left dry powder tube (26) and a right dry powder tube (27), wherein the right dry powder tube (27) is connected to the left dry powder tube (26) fixedly mounted on the arm (13) via a flange, one end of the left dry powder tube (26) is fixedly connected to a dry powder tube stator (25) via a flange, and one end of the dry powder tube stator (25) is rotatably connected to a dry powder tube rotor (24).

4. A high-flow three-phase jet lift fire truck according to claim 1, characterized in that: The inner diameter of the telescopic water pipe (14) is set to DN200, and the inner diameter of the main powder pipe (9) is set to DN100.

5. A high-flow three-phase jet lift fire truck according to claim 1, characterized in that: The arm frame (13) is structurally arranged with two sections of telescopic straight arms and one section of curved arm.

6. A high-flow three-phase jet lift fire truck according to claim 1, characterized in that: The water pump (7) is configured as a medium-pressure centrifugal water pump, and the engine unit (8) is configured as a diesel engine unit.

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