High-pressure jetting system for deep-submersible wind turbine installation platforms

Abstract

The present invention discloses a high-pressure jetting system for a deep-submerged bottom-mounted wind power installation platform, comprising an air supply system, a jetting pipeline system, and a nozzle which are connected in sequence; the air supply system comprises a starting air bottle 1, a starting air bottle 2, and a jetting air bottle which are arranged in parallel, the inlets of the starting air bottle 1, the starting air bottle 2, and the jetting air bottle are all connected to an air intake main pipe, and the air intake main pipe is respectively connected to a starting air compressor 1 and a starting air compressor 2 which serve as spares for each other through two connecting pipes; the ends of the two air outlet pipes of the starting air bottle 1 and the starting air bottle 2 are both connected to the air outlet main pipe, and the air outlet main pipe is provided with a power generation gas branch pipe connected to a generator set; a pressure reducing valve is provided on the air outlet pipe of the jetting air bottle, and the air outlet pipe of the jetting air bottle is connected to a fire water pipeline arranged in a column of the installation platform through a pipeline.

Description

Technical Field

[0001] The invention relates to a high-pressure jetting system for a deep-submersible bottom-mounted wind power installation platform. Background Art

[0002] Offshore crane platforms, with their strong wind and wave resistance, large deck area, large variable deck load, large loading capacity, wide adaptability to water depths, and multiple cabins for personnel, have become the best carriers for ultra-large cranes. Offshore crane platforms generally have multiple working conditions such as dispatching navigation, lifting operations, and storm self-survival. Their special operational functions place high demands on the design of the platform's sinking and floating system. The floating action of an offshore crane platform often includes the operation of breaking the bottom after being seated on the bottom for a long time. In other words, in order to solve the problem of the platform being attached to the bottom after being seated on the bottom for a long time, the platform needs to use flushing equipment to overcome the platform's suction force when floating. Therefore, the design of the platform's sinking and floating system often includes the design of a flushing system.

[0003] For example, CN108252286B discloses a bottom-based water platform and its method for water transportation and installation. When the bottom-based platform needs to be relocated, the ballast water in the ballast water tanks and the hollow cylinders of the four buoyancy tube structures are discharged according to the design procedure for floating and moving (equivalent to unloading ballast), generating upward buoyancy for the bottom-based platform. High-pressure water jetting equipment then sprays high-pressure water from pipes within the buoyancy tube base pile structure of the four buoyancy tube structures onto the seabed, making it easier for the buoyancy tube base pile structure of the four buoyancy tube structures to detach from the seabed surface. By discharging the ballast water in the ballast water tanks and the hollow cylinders of the four buoyancy tube structures according to the design procedure for floating and moving, the bottom-based platform is fully floated.

[0004] However, it did not disclose the specific structure of the high-pressure water jetting equipment, namely the high-pressure blasting system, and the layout of the piping system. In addition, the offshore lifting operation platform will have the problem of sticking to the bottom due to being seated on the bottom for a long time. In addition, due to the gravity of the platform itself, the adsorption force that needs to be overcome when the platform floats is very large. The high-pressure blasting system only uses high-pressure water for blasting, which cannot achieve a good blasting effect and has a low blasting efficiency. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a high-pressure jetting system for a deep-submerged wind power installation platform with good jetting effect and high jetting efficiency.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is: a high-pressure jetting system for a deep-submerged wind power installation platform, comprising an air supply system, a jetting pipeline system, and a nozzle connected in sequence;

[0007] The air supply system includes a starting air bottle 1, a starting air bottle 2, and a flushing air bottle arranged in parallel. The inlets of the starting air bottle 1, the starting air bottle 2, and the flushing air bottle are all provided with an air inlet pipe with a control valve, and the ends of the three air inlet pipes are connected to the air inlet main pipe, and the air inlet main pipe is respectively connected to the starting air compressor 1 and the starting air compressor 2 which serve as backup for each other through two connecting pipes; the outlets of the starting air bottle 1, the starting air bottle 2, and the flushing air bottle are all provided with an air outlet pipe with a control valve, and the ends of the two air outlet pipes of the starting air bottle 1 and the starting air bottle 2 are connected to the air outlet main pipe, and the air outlet main pipe is provided with a power generation gas branch pipe connected to the generator set; the air outlet pipe of the flushing air bottle is provided with a pressure reducing valve, and the air outlet pipe of the flushing air bottle is connected to a fire water pipeline arranged in the column of the installation platform through a pipeline, and the fire water pipeline is connected to the flushing pipeline system on the bottom of the lower floating body shell of the installation platform;

[0008] The spray piping system includes a compressed air ring pipe and a fire water main. The compressed air ring pipe is connected to the air outlet main in the air supply system. The compressed air ring pipe is divided into four compressed air mains, which are respectively connected to the four columns of the installation platform. Each of the four columns is equipped with a fire water main. A spray water pump that draws seawater is installed at the bottom of the floating body under the column to provide fire water to each fire water main.

[0009] The compressed air main pipe is divided into three compressed air branches in the column of the installation platform and connected to three different spraying areas respectively. Each compressed air branch is equipped with a butterfly valve and a check valve in sequence along the flow direction of the compressed air; the fire water main pipe is divided into three fire water branches in the column of the installation platform and connected to the three different spraying areas respectively. Each fire water branch is equipped with a butterfly valve and a check valve in sequence along the flow direction; the compressed air branch pipe and the fire water branch pipe in the same area are combined into a high-pressure spraying pipeline and connected to the bottom of the platform's lower floating shell by the column, and finally connected to the nozzle structure at the bottom. Each high-pressure spraying pipe A pressure sensor PT connected to the central control of the wind power installation platform is installed on the road. The air outlet main pipe is connected to the air outlet end of the air outlet pipe of the spray air bottle through a spare spray branch pipe with a pressure reducing valve. The starting air bottle 1 and the starting air bottle 2 are both provided with pressure sensors and pressure gauges. The starting air bottle 1 is provided with a maximum pressure switch and a minimum pressure switch for automatically controlling the start and stop of the starting air compressor 1 or the starting air compressor 2; the starting air bottle 2 is provided with a maximum pressure switch and a minimum pressure switch for automatically controlling the start and stop of the starting air compressor 1 or the starting air compressor 2.

[0010] As a preferred solution, the starting air bottle 1, the starting air bottle 2, and the flushing air bottle are all provided with safety valves.

[0011] As a preferred solution, the nozzle structure is evenly arranged on the bottom of the floating body shell, and the nozzle structure includes a flush nozzle, the flush nozzle pipe mouth is penetrated on the bottom of the lower floating body shell, and the contact part between the flush nozzle pipe mouth and the lower floating body shell bottom is provided with a sealing structure; a half pipe welded to the bottom of the lower floating body shell is provided on the outside of the flush nozzle, and the two ends of the half pipe are respectively provided with end inclined plates inclined toward the flush nozzle along the direction close to the axis of the half pipe, and a medium outlet is provided between the upper edge of the end inclined plate and the end edge of the half pipe.

[0012] As a preferred solution, a reinforcement seat supporting the flushing nozzle is provided on the inner bottom surface of the lower floating body shell at the flushing nozzle of the flushing nozzle pipeline. The reinforcement seat is sleeved on the outside of the flushing nozzle through a sleeve structure, and the reinforcement seat is welded to the bottom of the lower floating body shell.

[0013] As a preferred solution, an anti-clogging protection net is provided on the outer bottom surface of the lower floating body shell at the flushing outlet of the flushing pipeline.

[0014] The beneficial effects of the present invention are:

[0015] 1. This high-pressure spraying system is equipped with a fire water pipeline and a compressed air pipeline. The fire water pipeline and the compressed air pipeline are combined into a high-pressure spraying pipeline and connected to the bottom of the platform's lower floating shell by a column, and finally connected to the spraying branch pipe and spraying port at the bottom. The spraying system can provide the platform with two media, compressed air and fire water, to the spraying pipeline for bottom breaking operations after the platform has been sitting on the bottom for a long time. Compared with high-pressure spraying water, compressed air has an expansion effect. The amount of energy generated by compressed air in the spraying process is relatively large. Using compressed air for spraying can produce better spraying effects and high spraying efficiency in a short time.

[0016] 2. The spray outlet of the spray pipe is set as a nozzle structure, and a protective net is provided at the spray outlet. At the same time, end inclined plates are provided on both sides of the outer half pipe of the spray outlet. The protective net and the end inclined plates simultaneously prevent the spray outlet from being blocked, which has a good protection effect.

[0017] 3. In the high-pressure jetting system, the outlets of starting air compressor 1 and starting air compressor 2 are equipped with connecting pipes. The two starting air compressors serve as backup for each other. When one air compressor of the lifting machine breaks down, the other air compressor can inflate the starting air bottle. The starting air compressor can also supply air to the jetting air bottle through the outlet pipe; the jetting air bottle and the outlets of starting air bottle 1 and starting air bottle 2 are equipped with connecting pipes. In emergency situations, the jetting air bottle can serve as backup for starting air bottle 1 and starting air bottle 2.

[0018] 4. Each starting air bottle is equipped with a pressure sensor PT and a pressure gauge PI. The pressure sensor PT is connected to the central control to monitor the internal pressure of the starting air bottle and realize low pressure / high pressure alarm for the starting air bottle. At the same time, each starting air bottle automatically controls the highest pressure switch and the lowest pressure switch of the starting air compressor 1 or the starting air compressor 2, and automatically controls the start and stop of the starting air compressor.

[0019] 5. The starting air bottle and the flushing air bottle are each equipped with a corresponding safety valve. The safety valve is preset with the corresponding pressure value in advance. When the pressure in the air bottle is lower than or higher than the set pressure value, the safety valve automatically opens the corresponding air bottle to prevent malfunctions and achieve double protection of the safety of the high-pressure flushing system. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a piping layout diagram of the high-pressure jetting system of the deep-submersible bottom-mounted wind power installation platform in the embodiment.

[0021] Figure 2 for Figure 1 A local enlarged view in the C direction.

[0022] Figure 3 Schematic diagram of the jet nozzle structure in the embodiment.

[0023] Figure 4 for Figure 3 A-direction view.

[0024] Figure 5 for Figure 3 B-direction view.

[0025] In the picture:

[0026] 1. Air supply system 2. Spray pipe system 3. Nozzle structure

[0027] 101. Start compressor 1 102. Start compressor 2 103. Flush and spray air bottle

[0028] 104. Start air bottle 2 105. Start air bottle 1

[0029] 201, compressed air ring pipe 202, compressed air main pipe 203, fire water main pipe

[0030] 204, compressed air branch pipe 205, fire water branch pipe 206, high-pressure spray pipe

[0031] 301, jet nozzle 302, lower buoyancy body shell bottom 303, end inclined plate 303

[0032] 304, half pipe 305, protection net 306, reinforcement seat DETAILED DESCRIPTION

[0033] The specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0034] like Figure 1-5 As shown, the high-pressure jetting system of the deep-submersible bottom-mounted wind power installation platform includes an air supply system 1, a jetting pipeline system 2, and a nozzle 3 connected in sequence.

[0035] The air supply system 1 includes a starting air bottle 105, a starting air bottle 2 104, and a flushing air bottle 103 arranged in parallel. The inlets of the starting air bottle 105, the starting air bottle 2 104, and the flushing air bottle 103 are all provided with an air inlet pipe with a control valve, and the ends of the three air inlet pipes are all connected to the air inlet main pipe, and the air inlet main pipe is respectively connected to the starting air compressor 101 and the starting air compressor 2 102, which serve as spares for each other, through two connecting pipes; the outlets of the starting air bottle 105, the starting air bottle 2 104, and the flushing air bottle 103 are all provided with an air outlet pipe with a control valve, and the ends of the two air outlet pipes of the starting air bottle 105 and the starting air bottle 2 104 are all connected to the air outlet main pipe, and the air outlet main pipe is provided with a gas branch pipe for power generation connected to the generator set; the air outlet main pipe is connected to the air outlet end of the air outlet pipe of the flushing air bottle 103 through a spare flushing branch pipe provided with a pressure reducing valve, and the air outlet pipe of the flushing air bottle 103 is provided with a pressure reducing valve. In emergency situations, the spray air bottle 103 can serve as a backup for the starting air bottle 1 105 and the starting air bottle 2 104 .

[0036] Both starting air bottle 105 and starting air bottle 2 104 are equipped with pressure sensors and pressure gauges. The pressure sensors are connected to the central control system, providing low / high pressure alarms for the starting air bottles, thereby monitoring the internal pressure of the starting air bottles for protection and early warning. Starting air bottle 105 is equipped with a maximum and minimum pressure switches that automatically control the start and stop of starting air compressor 1 or starting air compressor 2; starting air bottle 2 104 is equipped with a maximum and minimum pressure switches that automatically control the start and stop of starting air compressor 1 or starting air compressor 2. Starting air bottle 105, starting air bottle 2 104, and flushing air bottle 103 are all equipped with safety valves.

[0037] The spraying pipeline system 2 includes a compressed air ring pipe 201 and a fire water main pipe 203. The compressed air ring pipe 201 is interconnected with the air outlet main pipe in the air supply system 1. The compressed air ring pipe 201 is divided into four compressed air main pipes 202, which are respectively connected to the four columns of the installation platform; each of the four columns is provided with a fire water main pipe 203, and the bottom of the floating body under the column provides fire water to each fire water main pipe 203 through a spraying water pump. The fire water can be obtained locally through the spraying water pump, and seawater is used as fire water for spraying, which greatly reduces the cost of spraying and is easy to use.

[0038] The compressed air main pipe 202 is divided into three compressed air branch pipes 204 in the column of the installation platform and connected to three different spraying areas. Each compressed air branch pipe 204 is provided with a butterfly valve and a check valve in sequence along the flow direction of the compressed air. The butterfly valve is used to control the on-off of the compressed air branch pipe 204, and the check valve is used to prevent the fire water in the fire water branch pipe 205 from running into the compressed air branch pipe 204; the fire water main pipe 203 is divided into three fire water branch pipes 205 in the column of the installation platform and connected to three different spraying areas. Each fire water branch pipe 205 is provided with a butterfly valve and a check valve in sequence along the water flow direction. The butterfly valve is used to control the on-off of the fire water branch pipe 205, and the check valve is used to prevent the compressed air in the compressed air branch pipe 204 from running into the fire water branch pipe 205.

[0039] The compressed air branch pipe 204 and the fire water branch pipe 205 in the same area are combined into a high-pressure jetting line 206, which is connected to the bottom of the platform's lower buoyancy shell via a column and ultimately to the nozzle structure 3 at the bottom. The high-pressure jetting line 206 provides the platform with compressed air and fire water, two media, for use in bottom-breaking operations after the platform has been grounded for an extended period. Each high-pressure jetting line 206 is equipped with a pressure sensor PT connected to the wind turbine installation platform's central control system. This pressure sensor PT is connected to the central control system to provide low-pressure / high-pressure alarms for the high-pressure jetting line 206, thereby monitoring the internal pressure of the high-pressure jetting line 206 and providing protection and early warning.

[0040] The nozzle structure 3 is evenly arranged on the bottom 302 of the floating body shell. The nozzle structure 3 includes a flushing nozzle 301. The nozzle of the flushing nozzle 301 is penetrated on the bottom 302 of the lower floating body shell. The contact part between the nozzle of the flushing nozzle 301 and the bottom 302 of the lower floating body shell is provided with a sealing structure. The sealing structure adopts an elastic sealing ring. The sealing structure has a good sealing effect and is used to prevent water outside the bottom 302 of the lower floating body shell from entering the lower shell body; a protective net 305 is provided on the outer bottom surface of the lower floating body shell 302 at the flushing nozzle 301 of the flushing pipeline. The protective net 305 is provided to prevent the flushing nozzle from being blocked, which has a good protection effect. A reinforcement seat 306 for supporting the jetting pipe is provided on the inner bottom surface of the lower buoy shell bottom 302 at the jetting outlet 301 of the jetting pipe. The reinforcement seat 306 is sleeved onto the outside of the jetting outlet 301 and welded to the lower buoy shell bottom 302, providing a good stabilization for the jetting outlet 301. A half-pipe 304 is provided on the outside of the protective net 305, the middle of which is welded to the lower buoy shell bottom 302. The ends of the half-pipe 304 are respectively provided with end inclined plates 303 that are inclined toward the jetting outlet 301 along a direction close to the axis of the half-pipe. The end inclined plates 303 are connected to the half-pipe 304 by welding, and a medium outlet is provided between the upper edge of the end inclined plate 303 and the end edge of the half-pipe 304.

[0041] Working method of high pressure jetting system for deep submersible wind power installation platform:

[0042] Working mode 1:

[0043] Step 1: System startup initialization

[0044] Confirm whether the compressed air pressure in the spray air bottle 103 meets the spray requirement (25 bar-30 bar). If so, proceed to step 2. If not, automatically stop or start air compressor 1 101 or start air compressor 2 102 to inflate the spray air bottle 103 through the maximum pressure switch or the minimum pressure switch until the compressed air pressure in the spray air bottle 103 meets the spray requirement (25 bar-30 bar), then proceed to step 2.

[0045] Step 2: Start the fire hose

[0046] Open the butterfly valves on each fire water branch pipe 205, and turn on the spray pumps on the fire water main pipe 203 to supply high-pressure fire water to each fire water main pipe 203. The high-pressure fire water flows through each fire water branch pipe 205 to the spray structures 3 connected to each high-pressure spray pipe 206 for seawater spraying.

[0047] Step 3: Switch to compressed air spray

[0048] When the pressure sensor PT provided on each high-pressure spraying pipeline 206 detects that the pressure value in the corresponding high-pressure spraying pipeline 206 exceeds the preset pressure value of 2 bar, it indicates that the spraying area is blocked or the fire water cannot be sprayed. Then, the butterfly valve on the compressed air branch pipe 204 in the corresponding spraying area is opened, the butterfly valve on the fire water branch pipe 205 in the corresponding spraying area is cut off, and the spraying air cylinder 103 is started. The high-pressure spraying pipeline 206 in this area is switched to the compressed air branch pipe 204 to provide compressed air for spraying. The butterfly valves in other areas remain in their original state, and high-pressure fire water is still used for spraying.

[0049] This is designed to deal with the situation where seawater cannot be used to spray in some areas. When this happens, it switches to compressed air spraying, which has a better spraying effect. It has good flexibility and can also achieve the internal pressure of the high-pressure spraying pipeline 206 to achieve protection and early warning functions.

[0050] Step 4: Switch to fire water spray

[0051] When the compressed air spraying time in the area has been switched to, say, 20 minutes or the pressure sensor PT on the high-pressure spraying pipe 206 in this area detects that its pressure is lower than the starting value of 2 bar, the spraying air cylinder 103 is closed, the butterfly valve on the fire water branch pipe 205 in the corresponding spraying area is opened, and the butterfly valve on the compressed air branch pipe 204 in the corresponding spraying area is cut off, the spraying pipe is switched to the fire water branch pipe 205, and high-pressure fire water spraying is continued;

[0052] Step 5: Stop spraying

[0053] When the pressure sensors PT on all high-pressure spray pipelines 206 detect that the pressure in the corresponding area high-pressure spray pipelines 206 is lower than the starting value of 3 bar, the spray water pump on the fire water main 203 is turned off, and all butterfly valves in the spray pipeline system 2 are closed at the same time, and the platform floating action is executed.

[0054] Working mode 1 mainly uses seawater for blasting. Seawater can be obtained locally, which greatly reduces the cost of blasting and is easy to use. However, compared with compressed air blasting, seawater blasting has poorer effects and lower blasting efficiency. It is suitable for low-cost situations and no requirements on operation time.

[0055] Working mode 2:

[0056] Step 1: System startup initialization

[0057] Confirm whether the compressed air pressure in the spray air bottle 103 meets the spray requirement (25 bar-30 bar). If so, proceed to step 2. If not, automatically stop or start air compressor 1 101 or start air compressor 2 102 to inflate the spray air bottle 103 through the maximum pressure switch or the minimum pressure switch until the compressed air pressure in the spray air bottle 103 meets the spray requirement (25 bar-30 bar), then proceed to step 2.

[0058] Step 2: Start the fire hose

[0059] Open the butterfly valves on each fire water branch pipe 205, and turn on the spray pumps on the fire water main pipe 203 to supply high-pressure fire water to each fire water main pipe 203. The high-pressure fire water flows through each fire water branch pipe 205 to the spray structures 3 connected to each high-pressure spray pipe 206 for fire water spraying.

[0060] Continue spraying for 1 hour, and then proceed to step 4. If, during the fire water spraying process (within 1 hour), the pressure sensor PT installed on the high-pressure spraying pipe 206 detects that the pressure value in the high-pressure spraying pipe 206 in the corresponding spraying area exceeds the preset pressure value of 2 bar, it indicates that the spraying area is blocked or seawater cannot be sprayed, and then proceed to step 3.

[0061] Step 3: Switch to compressed air spraying locally

[0062] Open the butterfly valve on the compressed air branch pipe 204 in the corresponding spraying area, cut off the butterfly valve on the fire water branch pipe 205 in the corresponding spraying area, start the spraying air cylinder 103, and switch the high-pressure spraying pipeline 206 in this area to the compressed air branch pipe 204 to provide compressed air for spraying. The butterfly valves in other areas remain in their original state and high-pressure fire water spraying is still used;

[0063] When the pressure sensor PT detects that the pressure value in the high-pressure spraying pipeline 206 of the corresponding spraying area is lower than the preset pressure value of 2 bar, the spraying air cylinder 103 is closed, the butterfly valve on the fire water branch pipe 205 in the corresponding spraying area is opened, and the butterfly valve on the compressed air branch pipe 204 in the corresponding spraying area is cut off at the same time, the spraying pipeline is switched to the fire water branch pipe 205, and the high-pressure fire water spraying is continued until the spraying time reaches 1 hour;

[0064] Step 4: Start the compressed air spray

[0065] Open the butterfly valves on the compressed air branch pipes 204 in all spraying areas, cut off the butterfly valves on the fire water branch pipes 205 in all spraying areas, turn off the spraying water pumps on the fire water main 203, and start the spraying air cylinder 103 at the same time, switching all high-pressure spraying pipelines 206 to the compressed air branch pipes 204 to provide compressed air for spraying;

[0066] Step 5: Stop spraying

[0067] When the pressure sensors PT on all high-pressure jet pipelines 206 detect that the pressure in the corresponding area high-pressure jet pipelines 206 is lower than the starting value of 3 bar, the jet air bottle 103 is closed, and all butterfly valves in the jet pipeline system 2 are closed at the same time, and the platform floats to the surface.

[0068] Working mode 2 first uses seawater for preliminary flushing, and then switches to the compressed air flushing pipeline to use compressed air for flushing. Compared with seawater flushing, compressed air has an expansion effect, and the amount of energy generated by compressed air during the flushing process is relatively large. Using compressed air for flushing can produce better flushing effects in a short time and high flushing efficiency, but the cost of compressed air is relatively high. Therefore, mode 2 is suitable for situations with requirements for operation time, and is suitable for situations where rapid ascent and rapid flushing are required.

[0069] The above embodiments are merely illustrative of the principles and effects of the present invention, as well as some embodiments of its application, and are not intended to limit the present invention. It should be noted that a person skilled in the art can make several modifications and improvements without departing from the inventive concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention.

Claims

1. A high-pressure jetting system for a deep-submersible wind turbine installation platform, characterized by: It includes an air supply system, a flushing and spraying pipeline system, and a nozzle that are connected in sequence; The air supply system includes a starting air bottle 1, a starting air bottle 2, and a flushing air bottle arranged in parallel. The inlets of the starting air bottle 1, the starting air bottle 2, and the flushing air bottle are all provided with an air inlet pipe with a control valve, and the ends of the three air inlet pipes are connected to the air inlet main pipe, and the air inlet main pipe is respectively connected to the starting air compressor 1 and the starting air compressor 2 which serve as backup for each other through two connecting pipes; the outlets of the starting air bottle 1, the starting air bottle 2, and the flushing air bottle are all provided with an air outlet pipe with a control valve, and the ends of the two air outlet pipes of the starting air bottle 1 and the starting air bottle 2 are connected to the air outlet main pipe, and the air outlet main pipe is provided with a power generation gas branch pipe connected to the generator set; the air outlet pipe of the flushing air bottle is provided with a pressure reducing valve, and the air outlet pipe of the flushing air bottle is connected to a fire water pipeline arranged in the column of the installation platform through a pipeline, and the fire water pipeline is connected to the flushing pipeline system on the bottom of the lower floating body shell of the installation platform; The spray piping system includes a compressed air ring pipe and a fire water main. The compressed air ring pipe is connected to the air outlet main in the air supply system. The compressed air ring pipe is divided into four compressed air mains, which are respectively connected to the four columns of the installation platform. Each of the four columns is equipped with a fire water main. A spray water pump that draws seawater is installed at the bottom of the floating body under the column to provide fire water to each fire water main. The compressed air main pipe is divided into three compressed air branches in the column of the installation platform and connected to three different spraying areas respectively. Each compressed air branch is equipped with a butterfly valve and a check valve in sequence along the flow direction of the compressed air; the fire water main pipe is divided into three fire water branches in the column of the installation platform and connected to the three different spraying areas respectively. Each fire water branch is equipped with a butterfly valve and a check valve in sequence along the flow direction; the compressed air branch pipe and the fire water branch pipe in the same area are combined into a high-pressure spraying pipeline and connected to the bottom of the platform's lower floating shell by the column, and finally connected to the nozzle structure at the bottom. Each high-pressure spraying pipe A pressure sensor PT connected to the central control of the wind power installation platform is set on the road; the air outlet main pipe is connected to the air outlet end of the air outlet pipe of the spray air bottle through a spare spray branch pipe with a pressure reducing valve; the starting air bottle 1 and the starting air bottle 2 are both provided with pressure sensors and pressure gauges, and the starting air bottle 1 is provided with a maximum pressure switch and a minimum pressure switch for automatically controlling the start and stop of the starting air compressor 1 or the starting air compressor 2; the starting air bottle 2 is provided with a maximum pressure switch and a minimum pressure switch for automatically controlling the start and stop of the starting air compressor 1 or the starting air compressor 2.

2. A high-pressure jetting system for a deep-submersible wind turbine installation platform according to claim 1, characterized in that: The first starting air bottle, the second starting air bottle and the flushing air bottle are all provided with safety valves.

3. A high-pressure jetting system for a deep-submersible wind turbine installation platform according to any of claims 1-2, characterized in that: The nozzle structure is evenly arranged on the bottom of the floating body shell, and the nozzle structure includes a flush nozzle, the flush nozzle nozzle mouth is penetrated on the bottom of the lower floating body shell, and the contact part between the flush nozzle nozzle and the bottom of the lower floating body shell is provided with a sealing structure; a half pipe welded to the bottom of the lower floating body shell is provided on the outside of the flush nozzle, and the two ends of the half pipe are respectively provided with an end inclined plate inclined toward the flush nozzle along the direction close to the axis of the half pipe, and a medium outlet is provided between the upper edge of the end inclined plate and the end edge of the half pipe.

4. A high-pressure jetting system for a deep-submersible wind turbine installation platform according to claim 3, characterized in that: A reinforcement seat supporting the flushing and spraying pipeline is provided on the inner bottom surface of the lower floating body shell at the flushing and spraying outlet of the flushing and spraying pipeline. The reinforcement seat is sleeved on the outside of the flushing and spraying outlet through a sleeve structure, and the reinforcement seat is welded to the lower floating body shell bottom.

5. The high-pressure jetting system for a deep-submersible wind turbine installation platform according to claim 3, characterized in that: An anti-clogging protection net is provided on the outer bottom surface of the lower floating body shell at the flushing outlet of the flushing pipeline.

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