Fire fighting system and ship

Abstract

The invention provides a fire extinguishing system and a ship. The fire extinguishing system comprises a first skid and a second skid; the first skid comprises a cover body, and an input pipeline, a lifting pump and a driving motor which are arranged in the cover body, the driving motor is connected with the lifting pump to drive the lifting pump, the input pipeline is communicated with the outside, and the lifting pump is communicated with the input pipeline to pump water; the second skid comprises a box body, a diesel power assembly, a booster pump, a hydraulic power assembly, a refrigeration assembly and a conveying pipeline, the diesel power assembly is connected with the hydraulic power assembly, the hydraulic power assembly is connected with the driving motor, the refrigeration assembly is used for reducing the temperature in the box body, and the diesel power assembly is connected with the booster pump to drive the booster pump; the booster pump is arranged on the downstream of the lifting pump and used for boosting water pumped by the lifting pump, one end of the conveying pipeline is connected to an outlet of the booster pump, and the other end of the conveying pipeline is used for being connected with a fire-fighting place; and after being pressurized by the booster pump, water pumped by the lifting pump enters the conveying pipeline and is conveyed outwards.

Description

Technical Field

[0001] The present invention relates to the technical field of fire protection, and particularly relates to a fire protection system and a ship. Background Art

[0002] The fire protection system is an important system on offshore platforms and ships, which is related to the safety of platforms and ships. On large offshore platforms and ships, conventional electric fire pumps often cannot meet the requirements of large flow rate and large head. Moreover, the pump cabins of large ships are quite cramped, making it difficult to arrange large fire pumps. Summary of the Invention

[0003] The purpose of the present invention is to provide a fire protection system and a ship to solve the problems in the prior art.

[0004] To solve the above technical problems, the present invention adopts the following technical solutions: A fire protection system includes a first skid and a second skid;

[0005] The first skid includes a housing and an input pipeline, a lift pump, and a drive motor arranged in the housing. The drive motor is connected to the lift pump to drive the lift pump. The input pipeline communicates with the outside, and the lift pump communicates with the input pipeline and can pump water;

[0006] The second skid includes a box body and a diesel power assembly, a booster pump, a hydraulic power assembly, a refrigeration assembly, and a delivery pipeline arranged in the box body. The diesel power assembly is connected to the hydraulic power assembly to drive the hydraulic power assembly to work. The hydraulic power assembly is connected to the drive motor to drive the drive motor to work. The refrigeration assembly is used to lower the temperature in the box body. The diesel power assembly is connected to the booster pump to drive the booster pump. The booster pump is arranged downstream of the lift pump and is used to pressurize the water pumped by the lift pump. One end of the delivery pipeline is connected to the outlet of the booster pump, and the other end is used to connect to a fire protection area;

[0007] Wherein, the water pumped by the lift pump is pressurized by the booster pump, enters the delivery pipeline, and is transported outwards.

[0008] In one embodiment, the diesel power assembly includes a diesel engine, an oil storage tank, a storage battery, and two couplings. The oil storage tank is used to store diesel. The diesel engine is communicated with the oil storage tank. The storage battery is connected to the diesel engine. Both couplings are connected to the diesel engine, and the two couplings are respectively connected to the hydraulic power assembly and the booster pump.

[0009] In one embodiment, the booster pump, the diesel engine, the hydraulic power assembly, and the oil storage tank are arranged at intervals along the longitudinal direction of the box body. The oil storage tank is arranged at one end of the longitudinal direction of the box body, the storage battery is arranged at one end of the box body far from the oil storage tank, and the conveying pipeline is arranged at one end of the box body far from the oil storage tank;

[0010] The refrigeration assembly is close to the oil storage tank and is arranged at intervals with the oil storage tank along the transverse direction of the box body. The refrigeration assembly is arranged on one side of the box body and is arranged on opposite sides with the storage battery.

[0011] In one embodiment, the diesel engine includes a cooling module. One end of the cooling module is connected to the outlet of the booster pump, and the other end is communicated with the outside to enable water to flow through and cool the diesel engine.

[0012] In one embodiment, the refrigeration assembly includes a heat exchanger and a hydraulic motor. The hydraulic motor is connected to the hydraulic power assembly and is driven by the hydraulic power assembly. The heat exchanger includes a cold quantity channel and a medium channel that can perform heat exchange with each other. The two ends of the cold quantity channel are respectively connected to the outlet of the booster pump and the outside. The medium channel is used for the circulation of hydraulic oil. The hydraulic oil absorbs the cold quantity of water, and both ends of the medium channel are communicated with the hydraulic motor.

[0013] In one embodiment, the cold quantity channel of the heat exchanger is arranged upstream of the cooling module of the diesel power assembly to convey water into the cooling module;

[0014] The inlet of the hydraulic motor is connected to the hydraulic pump of the hydraulic power assembly, and the outlet of the hydraulic motor is connected to the hydraulic oil tank of the hydraulic power assembly;

[0015] A buffer tank is provided downstream of the booster pump. The conveying pipeline and the inlet of the cold quantity channel are both communicated with the buffer tank;

[0016] A breather pipeline is provided at the top of the buffer tank to enable the inside of the buffer tank to communicate with the outside.

[0017] In one embodiment, the hydraulic power assembly includes a hydraulic pump and a hydraulic oil tank. Hydraulic oil is provided in the hydraulic oil tank. The hydraulic pump is arranged in the hydraulic oil tank. The inlet and outlet of the hydraulic pump are respectively connected to the diesel power assembly and the drive motor;

[0018] The hydraulic power assembly includes a heat exchanger which includes a cold source channel and a medium channel capable of exchanging heat with each other. Two ends of the cold source channel are respectively connected to the outlet of the booster pump and the outside. The medium channel is for the flow of hydraulic oil. Two ends of the medium channel are respectively connected to the outlet of the drive motor and the inlet of the hydraulic pump. The hydraulic oil in the medium channel absorbs the cold of the water in the cold source channel.

[0019] In one embodiment, the hydraulic power assembly includes a gear pump which is arranged outside the hydraulic oil tank. The inlet and the outlet of the gear pump are both communicated with the hydraulic oil tank, so that the hydraulic oil is pumped out by the gear pump and returns to the hydraulic oil tank.

[0020] An accumulator is arranged between the outlet of the drive motor and the inlet of the hydraulic pump. The accumulator is arranged upstream of the heat exchanger.

[0021] In one embodiment, the hydraulic power assembly includes a plurality of the hydraulic pumps. One of the hydraulic pumps is a main hydraulic pump which is connected to the coupling of the diesel power assembly, and the rest of the hydraulic pumps are connected to the main hydraulic pump through a connecting shaft.

[0022] A plurality of the hydraulic pumps are all connected to the drive motor, and a plurality of the hydraulic pumps are all connected to the hydraulic motor of the refrigeration assembly.

[0023] In one embodiment, the first skid includes a filter which is arranged on the input pipeline.

[0024] The first skid includes an anti-fouling pipeline communicated with the inside of the housing. The anti-fouling pipeline is used for conveying sodium hypochlorite solution into the housing.

[0025] In one embodiment, a first pressure sensor is arranged on the conveying pipeline.

[0026] A second pressure sensor is arranged on the pipeline between the lift pump and the booster pump.

[0027] The fire protection system includes a controller which is communicatively connected to the first pressure sensor and the second pressure sensor.

[0028] In one embodiment, the fire protection system includes a fire main pipe connected to the outlet of the conveying pipeline, a plurality of fire branch pipes and a plurality of pressure detectors arranged at intervals on the fire pipeline. The plurality of fire branch pipes are arranged at intervals and are respectively connected to the fire main pipe. The fire branch pipes are used for connecting to fire protection premises. The pressure detectors are used for detecting the pressure at the fire pipeline where they are located.

[0029] The pressure detector is communicatively connected to the controller;

[0030] The fire protection system includes a pressure maintaining pump communicated with the main fire protection pipe. The inlet of the pressure maintaining pump communicates with the outside, and can pump water into the main fire protection pipe.

[0031] In one embodiment, the main fire protection pipe is in a ring shape connected end to end;

[0032] A plurality of hydraulic remote control valves are provided at intervals on the main fire protection pipe;

[0033] The number of the pressure maintaining pumps is two. The two pressure maintaining pumps are arranged in parallel. A pressure monitor is provided downstream of the two pressure maintaining pumps, and the pressure monitor is located upstream of the main fire protection pipe.

[0034] In one embodiment, the fire protection system includes a test assembly. The test assembly includes a test main pipe connected to the outlet end of the delivery pipeline, a flow detector arranged on the test main pipe, a test branch pipe and a safety pipeline with both ends connected to the test main pipe. The inlet ends of the test branch pipe and the safety pipeline are located upstream of the flow detector, and the outlet ends of the test branch pipe and the safety pipeline are located downstream of the flow detector. A pressure control valve is provided on the test branch pipe, and a safety valve is provided on the safety pipeline.

[0035] The present invention also provides a ship, including a hull and at least one fire protection system as described above arranged on the hull.

[0036] In one embodiment, the first skid is located on the side of the hull, the input pipeline of the first skid extends downward to the bottom of the hull, and the second skid is located in the upper area of the hull above the waterline.

[0037] It can be seen from the above technical solutions that the present invention has at least the following advantages and positive effects:

[0038] The fire protection system in the present invention adopts the design of two independent skids, which not only has a high integration degree, but also has obvious advantages in the installation position and occupied space, solving the limitations of the traditional fire pump system and the problem of tight layout space in the cabins of large ships. Through the combination of a lift pump, a hydraulic drive assembly, a diesel power assembly and a booster pump, the problem of large displacement and large head is solved, and an efficient, reliable, flexible and safe fire protection function is realized, meeting the complex marine environment and high-standard requirements of large platforms or ships. Description of the Drawings

[0039] Figure 1 It is a schematic diagram of the fire protection system in the present invention.

[0040] Figure 2It is a schematic diagram of the second skid block in the present invention.

[0041] Figure 3 It is a schematic diagram among the first skid block, the second skid block and the fire main pipe in the present invention.

[0042] Figure 4 It is a schematic diagram of the ship in the present invention.

[0043] The description of the reference numerals is as follows:

[0044] 1. First skid block; 11. Cover body; 12. Input pipeline; 13. Lift pump; 14. Drive motor; 15. Filter; 16. Anti-fouling pipeline;

[0045] 2. Second skid block; 21. Box body; 22. Diesel power assembly; 221. Diesel engine; 222. Oil storage tank; 223. Battery; 224. Coupling; 225. Cooling module; 226. Control module; 23. Booster pump; 24. Hydraulic power assembly; 241. Hydraulic pump; 242. Hydraulic oil tank; 243. Heat exchanger; 244. Accumulator; 245. Gear pump; 246. Safety valve; 248. Main oil return pipeline; 25. Refrigeration assembly; 251. Heat exchanger; 252. Hydraulic motor; 26. Delivery pipeline; 271. Buffer tank; 272. Vent pipeline; 281. First pressure sensor; 282. Second pressure sensor; 29. Controller;

[0046] 31. Fire main pipe; 32. Fire branch pipe; 33. Pressure detector; 34. Hydraulic remote control valve;

[0047] 4. Pressure maintaining pump;

[0048] 51. Test main pipe; 52. Flow detector; 53. Test branch pipe; 54. Safety pipeline; 55. Pressure control valve; 56. Safety valve;

[0049] 6. Fire compartment. Detailed implementation manners

[0050] Although the present invention can be easily embodied in different forms of embodiments, only some specific embodiments are shown in the drawings and will be described in detail in this specification. At the same time, it can be understood that this specification should be regarded as a demonstrative illustration of the principles of the present invention and is not intended to limit the present invention to what is described herein.

[0051] Accordingly, a feature pointed out in this specification is used to illustrate one of the features of an embodiment of the present invention, rather than implying that each embodiment of the present invention must have the illustrated feature. In addition, it should be noted that this specification describes many features. Although some features may be combined to show possible system designs, these features can also be used in other combinations not explicitly described. Accordingly, unless otherwise stated, the illustrated combinations are not intended to be limiting.

[0052] In the embodiment shown in the drawings, the indication of directions (such as up, down, left, right, front, and back) is used to explain that the structures and movements of various elements of the present invention are not absolute but relative. When these elements are in the positions shown in the drawings, these explanations are appropriate. If the descriptions of the positions of these elements change, then the indications of these directions also change accordingly.

[0053] The present invention provides a fire protection system, which adopts the design of two independent skids. It not only has a high degree of integration, but also has obvious advantages in installation location and occupied space, solving the limitations of traditional fire pump systems and the problem of tight layout space in large ship cabins. Through the combination of a lift pump, a hydraulic drive assembly, a diesel power assembly, and a booster pump, the problem of large displacement and high head is solved, and an efficient, reliable, flexible, and safe fire protection function is achieved, meeting the complex marine environment and strict requirements of large platforms or ships.

[0054] The following specifically introduces this fire protection system.

[0055] Refer to Figure 1 , the fire protection system includes a first skid 1 and a second skid 2. The first skid 1 and the second skid 2 are independent of each other and are detachably connected. A lift pump 13 and a drive motor 14 are provided on the first skid 1, and a diesel power assembly 22, a booster pump 23, and a hydraulic power assembly 24 are provided on the second skid 2. The diesel power assembly 22 drives the booster pump 23 and the hydraulic power assembly 24, and the hydraulic power assembly 24 drives the drive motor 14 on the first skid 1, and the drive motor 14 drives the lift pump 13 to start pumping water. The water pumped by the lift pump 13 is pressurized by the booster pump 23 and then enters the delivery pipeline 26 and is delivered outward.

[0056] In the drawings of the present application, different line types shown represent the passages of different media.

[0057] Specifically, the first skid 1 includes a housing 11 and an input pipeline 12, a lift pump 13, and a drive motor 14 provided in the housing 11. The drive motor 14 is connected to the lift pump 13 to drive the lift pump 13. The input pipeline 12 communicates with the outside. The lift pump 13 communicates with the input pipeline 12 and can pump water.

[0058] The volume of the first skid block 1 is relatively small, so it can be arranged on the side of the hull without occupying the cabin space, solving the problem that the layout of the bottom deck space of the platform or ship is tense and the space is limited and it is impossible to arrange conventional fire pumps.

[0059] Preferably, a stabilizing device (not shown in the figure) is arranged in the housing 11 to limit the movement displacement of the lifting pump 13, thereby protecting the lifting pump 13.

[0060] Preferably, a copper-aluminum rod sacrificial electrode (not shown in the figure) is arranged between the housing 11 and the input pipeline 12 to play an anti-corrosion role.

[0061] One end of the input pipeline 12 extends out of the housing 11 and communicates with the outside. Among them, the input pipeline 12 can extend into the sea water, so that the lifting pump 13 pumps sea water.

[0062] Furthermore, the first skid block 1 includes a filter 15, and the filter 15 is arranged on the input pipeline 12 to filter the sea water entering the entire fire protection system and avoid blocking the pipeline.

[0063] The first skid block 1 includes an anti-biofouling pipeline 16 communicating with the inside of the housing 11, and the anti-biofouling pipeline 16 is used to transport sodium hypochlorite solution into the housing 11. That is, one end of the anti-biofouling pipeline 16 communicates with the inside of the housing 11, and one end is used to connect with the outside, so as to realize transporting the sodium hypochlorite solution into the housing 11. The sodium hypochlorite solution can kill marine organisms in the sea water.

[0064] The lifting pump 13 is provided with multiple pipeline channels for the hydraulic oil to the hydraulic motor of the lifting pump to flow through. Specifically, the multiple pipeline channels are composed of an inner pipe, an intermediate pipe and an outer pipe arranged. The inner pipe and the outer pipe are concentric, and the intermediate pipe is arranged in the space between the outer pipe and the inner pipe. Among them, the inner pipe is used for the high-pressure hydraulic oil to pass to the motor, the intermediate pipe is used for the low-pressure hydraulic oil of the motor to return oil, and the outer pipe is for the fire protection water to flow through. Through the above connection, the bearing between the lifting pump 13 and the driving motor 14 only contacts with the hydraulic oil and does not contact with the sea water, and the anti-corrosion performance is higher. The return oil can play a role in cooling the motor and lubricating the sealing shaft.

[0065] Specifically, the lifting pump 13 is end-suction, so it has better hydraulic lifting capacity.

[0066] The driving motor 14 is driven in a hydraulic form when driving the lifting pump 13, which is more stable and efficient.

[0067] The second skid block 2 includes a box body 21 and a diesel power assembly 22, a booster pump 23, a hydraulic power assembly 24, a refrigeration assembly 25 and a conveying pipeline 26 arranged inside the box body 21. The diesel power assembly 22 is connected to the hydraulic power assembly 24 to drive the hydraulic power assembly 24 to work. The hydraulic power assembly 24 is connected to the drive motor 14 to drive the drive motor 14 to work. The refrigeration assembly 25 is used to reduce the temperature inside the box body 21. The diesel power assembly 22 is connected to the booster pump 23 to drive the booster pump 23. The booster pump 23 is arranged downstream of the lift pump 13 and is used to pressurize the water pumped by the lift pump 13. One end of the conveying pipeline 26 is connected to the outlet of the booster pump 23, and the other end is used to connect to a fire hydrant.

[0068] In this embodiment, the box body 21 is a container. In other embodiments, the box body 21 can also be of other structures.

[0069] The insulation level of the box body 21 is Class A fireproof insulation. And the through holes for pipelines, cables, etc. to pass through on the box body 21 also meet the relevant requirements of Class A fireproof.

[0070] The second skid block 2 can be arranged on the main deck or the upper area higher than the platform or the ship's draft line, and the installation position is flexible, so that the installation height of the booster pump 23 is no longer limited.

[0071] Arranging the lift pump 13 and the booster pump 23 on the first skid block 1 and the second skid block 2 respectively can make the fire protection system more reasonable when arranged on a ship or a platform.

[0072] The diesel power assembly 22 is the power source of the entire fire protection system, making the fire protection system have an independent power source, without relying on the structure outside the fire protection system to provide power, and improving the safety and reliability of the fire protection system.

[0073] Adopting the diesel power assembly 22 realizes that the fire protection system has a self - contained independent power source, improves the safety, reliability and stability, and reduces the connection interface with other external systems. And the diesel power assembly 22 can also meet the problem of high load.

[0074] Specifically, the diesel power assembly 22 includes a diesel engine 221, an oil storage tank 222, a storage battery 223 and two couplings 224.

[0075] The oil storage tank 222 is used to store diesel. The diesel engine 221 is connected to the oil storage tank 222 through a pipeline. The diesel engine 221 provides power for the booster pump 23 and the hydraulic power assembly 24, and also provides power for the entire fire protection system.

[0076] The storage battery 223 is connected to the diesel engine 221 through a cable to provide starting electric energy for the diesel engine 221.

[0077] Both couplings 224 are connected to the diesel engine 221, and the two couplings 224 are respectively connected to the hydraulic power unit 24 and the booster pump 23. Specifically, the coupling 224 is a flexible coupling 224. The diesel engine 221 drives the hydraulic power unit 24 and the booster pump 23 to start through the coupling 224.

[0078] The type of directly driving the booster pump 23 and the hydraulic power unit 24 by the diesel engine 221 solves the problem of large power consumption of large-load equipment. Moreover, in the fire-fighting state, it no longer depends on the ship's electrical system, making the fire-fighting system safer and more reliable, and avoiding or reducing the losses of the ship or platform.

[0079] The diesel engine 221 includes a cooling module 225. One end of the cooling module 225 is connected to the outlet of the booster pump 23, and the other end is communicated with the outside to allow water to flow through and cool the diesel engine 221.

[0080] The diesel engine 221 includes a control module 226, which can be automatically adjusted between the minimum speed and the rated speed, and the adjustment range is not limited by high or low gears, making the fire-fighting system more stable and reliable.

[0081] Refer to Figure 2 , the booster pump 23, the diesel engine 221, the hydraulic power unit 24 and the oil storage tank 222 are arranged at intervals along the longitudinal direction of the box body 21. The oil storage tank 222 is arranged at one end of the longitudinal direction of the box body 21, the storage battery 223 is arranged at one end of the box body 21 far from the oil storage tank 222, and the delivery pipeline 26 is arranged at one end of the box body 21 far from the oil storage tank 222. The refrigeration component 25 is close to the oil storage tank 222 and is arranged at intervals with the oil storage tank 222 along the transverse direction of the box body 21. The refrigeration component 25 is arranged on one side of the box body 21 and is arranged on opposite sides with the storage battery 223.

[0082] The booster pump 23 is connected to the diesel engine 221 to receive the drive of the diesel engine 221. The booster pump 23 is arranged downstream of the lift pump 13 to pressurize the water pumped by the lift pump 13. The combination of the lift pump 13 and the booster pump 23 meets the design requirements of large head under the condition of large displacement.

[0083] The diesel engine 221 starts, drives the blades of the booster pump 23 to rotate, and provides rotational power for the booster pump 23. The diesel engine 221 directly drives the booster pump 23 to increase the pressure to meet the design requirements of the fire-fighting system.

[0084] Preferably, a buffer tank 271 is provided downstream of the booster pump 23. That is, the buffer tank 271 receives and stores the water pressurized by the booster pump 23.

[0085] The output pipeline is connected to the buffer tank 271. The buffer tank 271 can make the system stable and avoid water hammer.

[0086] Preferably, a vent pipeline 272 is provided at the top of the buffer tank 271 to enable the interior of the buffer tank 271 to communicate with the outside. An air release valve is provided on the vent pipeline 272 to allow the air in the vent pipeline 272 to escape. When the air discharge is completed, the air release valve automatically closes.

[0087] The hydraulic power assembly 24 includes a hydraulic pump 241 and a hydraulic oil tank 242. Hydraulic oil is provided in the hydraulic oil tank 242. The hydraulic pump 241 is disposed in the hydraulic oil tank 242. The inlet and outlet of the hydraulic pump 241 are respectively connected to the diesel power assembly 22 and the drive motor 14.

[0088] That is, when the diesel power assembly 22 starts, it drives the hydraulic pump 241 to start. After the hydraulic pump 241 starts, it causes the drive motor 14 to start and operate. Specifically, the diesel engine 221 drives the hydraulic pump 241 to start through the coupling 224.

[0089] Specifically, the hydraulic power assembly 24 includes a plurality of hydraulic pumps 241. One of the hydraulic pumps 241 is a main hydraulic pump, which is connected to the coupling 224 of the diesel power assembly 22, and the remaining hydraulic pumps 241 are connected to the main hydraulic pump through a connecting shaft. The plurality of hydraulic pumps 241 are all connected to the drive motor 14, and the plurality of hydraulic pumps 241 are all connected to the hydraulic motor 252 of the refrigeration assembly 25.

[0090] In this embodiment, the number of the hydraulic pumps 241 is two. In other embodiments, the number of the hydraulic pumps 241 can also be three or other numbers, which are specifically set according to actual needs.

[0091] The detachable connection between the first skid 1 and the second skid 2 is mainly the detachable connection between the hydraulic pump 241 and the drive motor 14. Exemplarily, pipelines are provided on both the drive motor 14 and the hydraulic pump 241, and the detachable connection between the pipelines is realized through quick connectors, thereby realizing the detachable connection between the first skid 1 and the second skid 2. The hydraulic pump 241 can also be detachably connected to the drive motor 14 in other ways.

[0092] The hydraulic power assembly 24 includes a heat exchanger 243. The heat exchanger 243 includes a cold source channel and a medium channel that can perform heat exchange with each other. The two ends of the cold source channel are respectively connected to the outlet of the booster pump 23 and the outside, and the medium channel is for the circulation of hydraulic oil. The two ends of the medium channel are respectively connected to the outlet of the drive motor 14 and the inlet of the hydraulic pump 241. The hydraulic oil in the medium channel absorbs the cold of the water in the cold source channel. That is, the hydraulic oil is cooled by water.

[0093] An accumulator 244 is provided between the outlet of the drive motor 14 and the inlet of the hydraulic pump 241. The accumulator 244 is disposed upstream of the heat exchanger 243. The accumulator 244 functions to stabilize the pressure of the hydraulic system.

[0094] The hydraulic power assembly 24 includes a gear pump 245. The gear pump 245 is disposed outside the hydraulic oil tank 242. The inlet of the gear pump 245 is communicated with the hydraulic oil tank 242, so that the hydraulic oil is pumped out by the gear pump 245 to the hydraulic oil supply system, specifically flowing to the hydraulic pump 241 and then returning to the hydraulic oil tank 242 through the main oil return pipeline 248. A filter (not shown in the figure) is installed at the end of the pipeline of the main oil return pipeline 248 returning to the hydraulic oil tank 242, which can play a role in filtering the hydraulic oil. The gear pump 245 is driven by an electric motor.

[0095] Among them, a valve (not shown in the figure) is provided on the main oil return pipeline 248 to control its on-off.

[0096] A safety valve 246 is provided at the outlet of the gear pump 245. A preset value is provided inside the safety valve 246. When the pressure exceeds the preset value, the hydraulic oil returns from the outlet of the safety valve 246 to the inlet of the gear pump 245.

[0097] Among them, when the fire protection system is not performing fire protection work, the hydraulic oil system is kept in circulation through the gear pump 245, providing continuous medium flow for the hydraulic motor and the like, maintaining a certain system pressure, which is beneficial to the rapid start-up and system stability of the system. When the fire pump receives the start command, the diesel engine 221 starts and drives the hydraulic pump 241 to rotate, providing power for the hydraulic motor 252.

[0098] The refrigeration assembly 25 is used to reduce the temperature inside the box body 21 to ensure that each structure inside the box body 21 works within a suitable temperature. Specifically, the refrigeration assembly 25 includes a heat exchanger 251 and a hydraulic motor 252. The hydraulic motor 252 is connected to the hydraulic power assembly 24 and is driven by the hydraulic power assembly 24 to realize the refrigeration function. The hydraulic motor 252 is specifically connected to the hydraulic pump 241.

[0099] The inlet of the hydraulic motor 252 is connected to the hydraulic pump 241 of the hydraulic power assembly 24, and the outlet of the hydraulic motor 252 is connected to the hydraulic oil tank 242 of the hydraulic power assembly 24. That is, the inlet of the hydraulic motor 252 is communicated with the hydraulic pump 241 to receive the hydraulic oil, and the outlet of the hydraulic motor 252 is connected to the hydraulic oil tank 242 to return the hydraulic oil to the hydraulic oil tank 242.

[0100] The outlet of the hydraulic motor 252 is preferably connected to the inlet of the medium channel of the heat exchanger 243, so that the hydraulic oil is cooled and then returned to the hydraulic oil tank 242. In this embodiment, the hydraulic oil flowing to the hydraulic motor 252 and the hydraulic oil flowing to the drive motor 14 both flow to the heat exchanger 243 for cooling and then return to the hydraulic oil tank 242.

[0101] The heat exchanger 251 includes a cold quantity channel and a medium channel capable of performing heat exchange with each other. The two ends of the cold quantity channel are respectively connected to the outlet of the booster pump 23 and the outside. The medium channel is for the circulation of hydraulic oil, and the hydraulic oil absorbs the cold quantity of water. Both ends of the medium channel are communicated with the hydraulic motor 252. Specifically, the inlet of the cold quantity channel is communicated with the buffer tank 271. Through the connection of the buffer tank 271 with both the conveying pipeline 26 and the cold quantity channel, the shunt function is realized, one way for fire fighting and the other way for cooling. The outlet of the cold quantity channel can be directly communicated with the outside to discharge the water.

[0102] In this embodiment, the outlet of the cold quantity channel is communicated with the cooling module 225 of the diesel power assembly 22, and the water is conveyed to the cooling module 225 to continue using the cold quantity in the water to cool the diesel engine 221. The outlet of the cooling module 225 is communicated with the inlet of the cold source channel of the heat exchanger 243 of the hydraulic power assembly 24 to convey the water into the heat exchanger 243 to continue using the cold quantity to cool the hydraulic oil. The outlet of the cold source channel of the heat exchanger 243 is communicated with the outside, and then the water is discharged.

[0103] That is, in this embodiment, the water shunted by the buffer tank 271 first passes through the heat exchanger 251 of the refrigeration assembly 25, then through the cooling module 225 of the diesel power assembly 22, and finally is discharged after passing through the heat exchanger 243 of the hydraulic power assembly 24. The cold quantity in the water is fully utilized.

[0104] A first pressure sensor 281 is provided on the conveying pipeline 26. A second pressure sensor 282 is provided on the pipeline between the lifting pump 13 and the booster pump 23. The fire fighting system includes a controller 29, and the controller 29 is communicatively connected to the first pressure sensor 281 and the second pressure sensor 282.

[0105] The fire fighting system includes a fire main pipe 31 connected to the outlet of the conveying pipeline 26, a plurality of fire branch pipes 32, and a plurality of pressure detectors 33 spaced apart on the fire main pipe 31. The plurality of fire branch pipes 32 are spaced apart and respectively connected to the fire main pipe 31, and the fire branch pipes 32 are used to connect to the fire fighting place 6.

[0106] The fire branch pipes 32 are arranged at various places according to actual needs. Exemplarily, the fire fighting place 6 can be a fire hydrant, or can also be a foam system or a deluge system.

[0107] The pressure detector 33 is used to detect the pressure at the fire pipeline where it is located. The pressure detector 33 is preferably communicatively connected to the controller 29 to reduce multi-interface connections, making the fire fighting system more concise and efficient in control and having a high degree of automation.

[0108] Specifically, the fire main pipe 31 is in a ring shape with its head and tail connected.

[0109] The fire main pipe 31 is provided with a plurality of hydraulically remote control valves 34 at intervals, so as to ensure that when any part of the fire main pipe 31 fails, the function of the fire protection system can be guaranteed to the greatest extent, minimizing the number of failed pipe sections.

[0110] The fire protection system includes a pressure maintaining pump 4 communicated with the fire main pipe 31. The inlet of the pressure maintaining pump 4 is communicated with the outside, and it can pump water into the fire main pipe 31.

[0111] The number of the pressure maintaining pumps 4 is two, and the two pressure maintaining pumps 4 are arranged in parallel. One of the two pressure maintaining pumps 4 is in use and the other is in reserve.

[0112] A pressure monitor is provided downstream of the two pressure maintaining pumps 4, and the pressure monitor is located upstream of the fire main pipe 31. A preset value is provided in the pressure monitor. When it monitors that the pressure value is lower than the preset value, the pressure maintaining pump 4 is automatically started. If the pressure further decreases and is lower than the set value of any pressure detector 33, the diesel engine 221 is started to start the booster pump 23 and the lift pump 13. The displacement of the pressure maintaining pump 4 can ensure that when any fire extinguishing terminal fire hydrant is opened, the fire water volume design requirements of one fire extinguishing terminal fire hydrant are met.

[0113] The setting of the pressure maintaining pump 4 can ensure that when one fire extinguishing terminal fire hydrant in the fire protection system is opened during application, the fire water volume requirements are met, or when the pipeline leaks and causes the pressure to decrease, the pressure maintaining pump 4 is automatically started, thereby reducing the start-up times of the booster pump 23 and the lift pump 13.

[0114] The fire protection system includes a test component. The test component includes a test main pipe 51 connected to the outlet end of the conveying pipeline 26, a flow detector 52 arranged on the test main pipe 51, a test branch pipe 53 with both ends connected to the test main pipe 51, and a safety pipeline 54. The inlet ends of the test branch pipe 53 and the safety pipeline 54 are located upstream of the flow detector 52, and the outlet ends of the test branch pipe 53 and the safety pipeline 54 are located downstream of the flow detector 52. A pressure control valve 55 is provided on the test branch pipe 53, and a safety valve 56 is provided on the safety pipeline 54.

[0115] When the fire protection system exceeds the design pressure, the safety valve 56 opens to ensure that the pressure of the fire protection system does not exceed the design pressure at any time, playing a safety role.

[0116] The test component is used for periodic side viewing to meet relevant requirements. The end of the test main pipe 51 is directly communicated with the outside, and the water is directly discharged. A test branch pipe 53 is led out from the test main pipe 51, and the test branch pipe 53 is the minimum flow pipeline when the fire protection system is initially started. A pressure control valve 55 is installed on the test branch pipe 53, and its pressure setting value is obtained according to the pump curve and calculation, and is less than the setting value of the safety valve 56.

[0117] The first skid-mounted unit 1 and the second skid-mounted unit 2 have high independence and high automation level, and do not require personnel on duty. The entire fire protection system is usually in the automatic mode and can be ready to start automatically at any time. It can start quickly when receiving the start signal sent by the fire and gas system. The fire protection system is also provided with functions such as manual start and manual stop. The skid-mounted design can form advantages such as space saving, flexible layout, convenient installation and maintenance, etc.

[0118] The first skid-mounted unit 1 and the second skid-mounted unit 2 form a fire protection skid-mounted unit group, and multiple fire protection skid-mounted unit groups can share a fire main pipe 31. Specifically, the number of both the first skid-mounted unit 1 and the second skid-mounted unit 2 is multiple, and the first skid-mounted unit 1 and the second skid-mounted unit 2 are arranged in one-to-one correspondence and paired to form a fire protection skid-mounted unit group, and the conveying pipelines 26 of multiple fire protection skid-mounted unit groups are all connected to the fire main pipe 31. Exemplarily, refer to Figure 3 , the number of both the first skid-mounted unit 1 and the second skid-mounted unit 2 is two, and the number of fire protection skid-mounted unit groups is two. And each fire protection skid-mounted unit group includes a test component.

[0119] Refer to Figure 4 , the present invention also provides a ship, which includes a hull and at least one fire protection system arranged on the hull.

[0120] The number of fire protection skid-mounted unit groups is set according to the specific requirements of the ship. Exemplarily, generally two fire protection skid-mounted unit groups are configured, that is, one for use and one for standby. Three fire protection skid-mounted unit groups can also be configured, two for use and one for standby. Or four fire protection skid-mounted unit groups can be configured. According to the design requirements, two for use and two for standby or three for use and one for standby can be adopted. It is specifically set according to the actual situation.

[0121] The first skid-mounted unit 1 is located on the side of the hull, and the input pipeline 12 of the first skid-mounted unit 1 extends downward to the bottom of the hull. The second skid-mounted unit 2 is located in the upper area of the hull above the waterline. Among them, the upper area can be the main deck or other positions.

[0122] Neither the first skid-mounted unit 1 nor the second skid-mounted unit 2 occupies the internal cabin space of the ship, and the installation position is flexible. Since the second skid-mounted unit 2 is arranged in the above area, the height of the booster pump 23 is not restricted.

[0123] The positions of the first skid-mounted unit 1 and the second skid-mounted unit 2 are arranged in a safe area.

[0124] The fire main pipe 31 and the hydraulic remote control valve 34 are arranged on the main deck and extend to each fire protection area 6 on the hull through the fire branch pipe 32.

[0125] Exemplarily, the fire protection area 6 can be a fire hydrant, a main deck foam system, a deluge system or a sprinkler system for each process module and other fire guns, etc., or a foam system for the helicopter deck, etc. That is, the fire protection system provides fire protection water for each area and upper module of the ship.

[0126] When the fire protection system is applied to a ship, pipeline structures such as the input pipeline 12 and the conveying pipeline 26 can all adopt large-diameter structures. Therefore, compared with the wet fire protection system in the related art, a pressure maintaining tank is arranged behind the pressure maintaining pump 4. At this time, the fire protection system plays a buffering role through the pipeline and does not need to be provided with a fire protection pressure maintaining tank, saving costs.

[0127] Combined with the above introduction, the fire protection system in the present invention has the following advantages:

[0128] 1. The design of two independent skids is adopted, which not only has a high degree of integration, but also has obvious advantages in the installation position and occupied space, solving the limitations of the traditional fire pump system and the problem of tight layout space in large ship cabins.

[0129] 2. Through the combination of the lifting pump 13, the hydraulic drive assembly, the diesel power assembly 22 and the booster pump 23, the problem of large displacement and large head is solved, and an efficient, reliable, flexible and safe fire protection function is realized, meeting the complex marine environment and high-standard requirements of large platforms or ships.

[0130] 3. Through the form of directly driving the booster pump 23 and the hydraulic power assembly 24 by the diesel engine 221, the problem of large power consumption of large-load equipment is solved, and in the fire protection state, it no longer depends on the electrical system of the ship, making the fire protection system safer and more reliable, and avoiding or reducing the losses of the ship or platform.

[0131] 4. The hydraulic power assembly 24 not only drives the drive motor 14 on the first skid 1, but also drives the hydraulic motor 252 of the refrigeration assembly 25, realizing the integrated design of the drive source. The hydraulic power assembly 24 includes a gear pump 245, which keeps the hydraulic oil system in circulation all the time when the booster pump 23 and the lifting pump 13 are not working, which is beneficial to the rapid start of the system.

[0132] Although the present invention has been described with reference to several typical embodiments, it should be understood that the terms used are illustrative and exemplary, rather than restrictive. Since the present invention can be embodied in many forms without departing from the spirit or essence of the invention, it should be understood that the above embodiments are not limited to any of the foregoing details, but should be broadly construed within the spirit and scope defined by the appended claims. Therefore, all changes and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.

Claims

1. A fire fighting system, characterized in that: It includes a first skid and a second skid; The first skid comprises a cover body, an input pipeline, a lift pump and a drive motor arranged in the cover body, the drive motor is connected to the lift pump to drive the lift pump, the input pipeline is communicated with the outside, and the lift pump is communicated with the input pipeline to pump water; The second skid comprises a box body, and a diesel power assembly, a booster pump, a hydraulic power assembly, a refrigeration assembly and a delivery pipeline arranged in the box body, the diesel power assembly is connected to the hydraulic power assembly to drive the hydraulic power assembly to work, the hydraulic power assembly is connected to the drive motor to drive the drive motor to work, the refrigeration assembly is used to reduce the temperature in the box body, the diesel power assembly is connected to the booster pump to drive the booster pump, the booster pump is arranged downstream of the booster pump and is used to increase the pressure of water pumped by the booster pump, one end of the delivery pipeline is connected to the outlet of the booster pump, and the other end is used to be connected to the fire fighting place; The water pumped by the lifting pump is pressurized by the booster pump, enters the delivery pipeline and is delivered to the outside.

2. The fire fighting system according to claim 1, characterized in that: The diesel power assembly includes a diesel engine, an oil storage tank, a battery and two couplings. The oil storage tank is used to store diesel, the diesel engine is connected to the oil storage tank, the battery is connected to the diesel engine, both couplings are connected to the diesel engine, and the two couplings are respectively connected to the hydraulic power assembly and the boost pump.

3. The fire fighting system according to claim 2, characterized in that: The boost pump, the diesel engine, the hydraulic power assembly and the oil conservator are arranged at intervals along the longitudinal direction of the box body, the oil conservator is arranged at one end of the box body in the longitudinal direction, the battery is arranged at one end of the box body away from the oil conservator, and the delivery pipeline is arranged at one end of the box body away from the oil conservator; The refrigeration component is close to the oil storage cabinet and is spaced apart from the oil storage cabinet along the lateral direction of the box body. The refrigeration component is arranged on one side of the box body and is arranged on two opposite sides with the battery.

4. The fire fighting system according to claim 2, characterized in that: The diesel engine comprises a cooling module, one end of which is connected to the outlet of the boost pump, and the other end of which is communicated with the outside so that water can flow to cool the diesel engine.

5. The fire fighting system according to claim 1, characterized in that: The refrigeration component includes a heat exchanger and a hydraulic motor. The hydraulic motor is connected to the hydraulic power component and is driven by the hydraulic power component. The heat exchanger includes a cold channel and a medium channel that can exchange heat with each other. The two ends of the cold channel are respectively connected to the outlet of the booster pump and the outside world. The medium channel is used for the circulation of hydraulic oil. The hydraulic oil absorbs the coldness of water. Both ends of the medium channel are connected to the hydraulic motor.

6. The fire fighting system according to claim 5, characterized in that: The cooling channel of the heat exchanger is arranged upstream of the cooling module of the diesel power assembly to transport water into the cooling module; The inlet of the hydraulic motor is connected to the hydraulic pump of the hydraulic power assembly, and the outlet of the hydraulic motor is connected to the hydraulic oil tank of the hydraulic power assembly; A buffer tank is provided downstream of the booster pump, and the delivery pipeline and the inlet of the cold channel are both connected to the buffer tank; A ventilating pipeline is arranged on the top of the buffer tank so that the interior of the buffer tank can communicate with the outside.

7. The fire fighting system according to claim 1, characterized in that: The hydraulic power assembly includes a hydraulic pump and a hydraulic oil tank, the hydraulic oil tank is provided with hydraulic oil, the hydraulic pump is arranged in the hydraulic oil tank, and the inlet and outlet of the hydraulic pump are respectively connected to the diesel power assembly and the drive motor; The hydraulic power assembly includes a heat exchanger, which includes a cold source channel and a medium channel that can exchange heat with each other. The two ends of the cold source channel are respectively connected to the outlet of the booster pump and the outside world. The medium channel is used for the circulation of hydraulic oil. The two ends of the medium channel are respectively connected to the outlet of the drive motor and the inlet of the hydraulic pump. The hydraulic oil in the medium channel absorbs the coldness of the water in the cold source channel.

8. The fire fighting system according to claim 7, characterized in that: The hydraulic power assembly includes a gear pump, which is arranged outside the hydraulic oil tank. The inlet and outlet of the gear pump are both connected to the hydraulic oil tank, so that the hydraulic oil is pumped out through the gear pump and returned to the hydraulic oil tank; An accumulator is provided between the outlet of the driving motor and the inlet of the hydraulic pump, and the accumulator is arranged upstream of the heat exchanger.

9. The fire fighting system according to claim 7, characterized in that: The hydraulic power assembly comprises a plurality of hydraulic pumps, one of which is an active hydraulic pump connected to the coupling of the diesel power assembly, and the remaining hydraulic pumps are connected to the active hydraulic pump via a connecting shaft; The plurality of hydraulic pumps are all connected to the driving motor, and the plurality of hydraulic pumps are all connected to the hydraulic motor of the refrigeration assembly.

10. The fire fighting system according to claim 1, characterized in that: The first skid comprises a filter, and the filter is arranged on the input pipeline; The first skid comprises a marine growth prevention pipeline communicated with the cover body, and the marine growth prevention pipeline is used for conveying sodium hypochlorite solution into the cover body.

11. The fire fighting system according to claim 1, characterized in that: The delivery pipeline is provided with a first pressure sensor; A second pressure sensor is provided on the pipeline between the lift pump and the boost pump; The fire fighting system includes a controller, and the controller is communicatively connected with the first pressure sensor and the second pressure sensor.

12. The fire fighting system according to claim 1, characterized in that: The fire protection system comprises a fire main pipe connected to the outlet of the delivery pipeline, a plurality of fire branch pipes and a plurality of pressure detectors arranged at intervals on the fire protection pipeline, wherein the plurality of fire branch pipes are spaced and respectively connected to the fire main pipe, the fire branch pipes are used to be connected to the fire protection place, and the pressure detector is used to detect the pressure at the fire protection pipeline where it is located; The pressure detector is communicatively connected with the controller; The fire fighting system comprises a pressure-maintaining pump which is in communication with the fire fighting main pipe, and the inlet of the pressure-maintaining pump is in communication with the outside, so that water can be pumped into the fire fighting main pipe.

13. The fire fighting system according to claim 12, characterized in that: The fire main pipe is in a ring shape connected end to end; A plurality of hydraulic remote control valves are arranged at intervals on the fire main pipe; There are two pressure-maintaining pumps, which are arranged in parallel. A pressure monitor is provided downstream of the two pressure-maintaining pumps, and the pressure monitor is located upstream of the fire main pipe.

14. The fire fighting system according to claim 12, characterized in that: The fire protection system includes a test assembly, which includes a test main pipe connected to the outlet end of the delivery pipeline, a flow detector arranged on the test main pipe, a test branch pipe and a safety pipe connected to the test main pipe at both ends, the inlet ends of the test branch pipe and the safety pipe are located upstream of the flow detector, and the outlet ends of the test branch pipe and the safety pipe are located downstream of the flow detector. A pressure control valve is provided on the test branch pipe, and a safety valve is provided on the safety pipe.

15. A ship, characterized in that: The invention comprises a hull and at least one fire fighting system according to any one of claims 1 to 14 arranged on the hull.

16. The vessel according to claim 15, characterized in that The first skid is located at the side of the hull, an input pipeline of the first skid extends downward to the bottom of the hull, and the second skid is located at an upper area of ​​the hull above the waterline.

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