Methanol inland water vessel reversible air mast

Abstract

The application relates to a methanol inland river ship reversible ventilation mast, which comprises a supporting base, a supporting rod, a winch, a steel wire rope and a ventilation mast. The supporting base is fixed to a mounting platform, the ventilation mast is connected with the supporting base through hinging, and can be tilted around the connecting position. The winch is connected with the steel wire rope hook on the ventilation mast through the steel wire rope and a lifting ground wheel, so that the lifting adjustment and the folding retraction of the ventilation mast are realized. The ventilation mast top is provided with a ventilation mast for guiding the methanol fuel cabin gas to a safe area. The application has the advantages of simple structure, convenient operation, the ability to meet the quick folding demand of the inland river ship under the bridge height limit working condition, and the effects of improving the ventilation safety and use reliability of the methanol fuel ship.

Description

Technical Field

[0001] This application relates to the field of ventilation and safety equipment for inland waterway vessels, and in particular to a methanol-powered inland waterway vessel with a tiltable, breathable mast. Background Technology

[0002] With the development of green and low-carbon inland waterway transportation, methanol fuel has been gradually applied to the power systems of inland waterway vessels due to its advantages such as clean combustion, low emissions of sulfur oxides and particulate matter, and wide availability. During the storage and use of methanol fuel, certain volatile gases are generated in the fuel tank. In order to ensure the internal pressure balance and operational safety of the fuel tank, a dedicated venting system is usually required to discharge the gas to a safe area through a venting mast. At the same time, volatile gases are also generated in cargo holds, oil tanks and other areas during loading, unloading or navigation. Therefore, inland waterway vessels are generally equipped with venting masts to meet the requirements of ventilation, breathing and safe depressurization.

[0003] Existing ship vented masts are typically fixed structures, usually installed on the deck or top of the superstructure. Increasing the mast height ensures that emitted gases are kept away from personnel areas and high-temperature equipment, thus improving safety. This is especially true for methanol-fueled ships, where methanol's volatility and flammability necessitate even higher requirements for venting height and safety distances. Therefore, vented masts generally need to be installed at greater heights to meet relevant ship safety regulations.

[0004] However, the operating environment of inland waterways differs significantly from that of ocean vessels. Inland waterways have a large number of low-clearance facilities such as bridges, locks, and overhead cables, which are densely distributed. Vessels often need to pass through height-restricted areas during navigation. Although fixed high-mounted ventilated masts can meet safety emission requirements, their overall height is not adjustable. When passing through bridge areas or low-clearance facilities, they are prone to interference and collisions with obstacles. This can cause minor issues such as bending or breaking of the ventilated mast, or even serious issues such as methanol leakage, damage to the ventilation system, or even safety accidents, affecting the normal navigation and operational safety of vessels.

[0005] To address these issues, some inland waterway vessels have adopted methods such as manually disassembling the ventilated mast, temporarily folding it, or simply laying it down to lower its overall height and adapt to bridge passage requirements. However, existing methods generally suffer from complex operation, high labor intensity, and low efficiency. Especially in waterways where bridges are frequently used, repeated disassembly and assembly are required, which not only increases the workload of crew members but also easily leads to improper installation and loose connections, affecting the stability and reliability of the ventilated system.

[0006] Meanwhile, the existing driving methods for ventilated masts are relatively simple. Some are lowered by direct manual pushing, which is greatly affected by the weight of the mast and poses a high safety risk. Others use hydraulic drive structures, which can achieve automated control, but the system is complex, has high manufacturing and maintenance costs, and the hydraulic system is prone to leakage and failure in the long-term humid and corrosive environment, which is not conducive to the promotion and application of inland waterway vessels.

[0007] In addition, existing ventilated masts still have shortcomings in terms of structural strength, corrosion resistance, and adaptability to methanol environments. Due to the corrosive nature of methanol, ordinary metal structures are prone to rust and fatigue damage after long-term use, which reduces the safety and reliability of the ventilated system. Especially during the frequent raising and lowering of the ventilated mast, the connecting and supporting parts are subjected to alternating loads, making them more susceptible to wear and structural failure.

[0008] Therefore, existing technologies cannot simultaneously meet the requirements of both "high-level safe emissions" and "low-level safe passage," and there is a lack of a simple, easy-to-operate, stable and reliable, and suitable in the operating environment of methanol-powered inland waterway vessels. Summary of the Invention

[0009] In order to improve the technical problem that existing technologies cannot simultaneously meet the requirements of "high-level safe emissions" and "low-level safe passage", this application provides a methanol inland waterway vessel with a tiltable and breathable mast.

[0010] The technical solution for a methanol-powered inland waterway vessel tiltable ventilated mast provided in this application is as follows: A methanol-powered inland waterway vessel with a tiltable and breathable mast includes a support base, the bottom of which is provided with feet fixed to an installation platform. A winch is installed near the foot of the support base, and a wire rope is installed on the winch reel. The support base is axially located at the upper end of the winch and a support rod is provided. The bottom of the support rod is connected to the bracket at the axial position of the support base by two bolts. The angle A formed by the support rod and the support base is an acute angle. The support rod is provided with a lifting wheel at one end away from the support base. The wire rope is axially partially connected to the inner groove of the lifting wheel. When the wire rope is axially displaced, the wire rope synchronously drives the lifting wheel to rotate. The top of the support base is provided with a ventilated mast. One end of the ventilated mast is embedded in the top of the support base and connected by a bolt. The ventilated mast can pitch and move with the bolt as a fulcrum. The angle B between the ventilated mast and the support base changes synchronously. The ventilated mast is located at one end away from the support base. A wire rope hook is located on the inner side of the ventilated mast. The wire rope hook is connected to the head of the wire rope. When the winch rotates counterclockwise and clockwise, the winch synchronously winds and releases the wire rope. The wire rope synchronously extends along the lifting wheel, pulling the wire rope hook position upward and lowering it downward. The ventilated mast and the ventilated mast can be adjusted in a pitching motion with the bolt as the fulcrum, and the angle B changes synchronously.

[0011] By adopting the above technical solution, a linkage traction mechanism is formed by a winch, wire rope, support rod, and lifting wheel to achieve smooth raising and lowering adjustment of the ventilated mast. This allows the ventilated mast to quickly change height according to the navigation environment of inland waterways. When ships pass through low-clearance areas such as bridges, locks, and overhead cables, the wire rope can be released by the winch to tilt and lower the ventilated mast around a bolt position, reducing the overall height of the ship. After passing through height-restricted areas, the wire rope can be tightened by the winch to restore the ventilated mast to its high-position working state, meeting the high-level safe emission requirements of methanol fuel tank gases. This structure does not require overall disassembly and features convenient operation, stable adjustment, reliable force bearing, strong adaptability, and high safety. It effectively reduces the intensity of manual operation and improves the navigation efficiency of inland waterways and the operational reliability of the ventilated system.

[0012] Optionally, the winch is fixed to the support base with a nut, and the winch disc is connected to the winch frame with a nut for the rotating wheel of the wire rope.

[0013] By adopting the above technical solution, the winch can be stably installed on the support base, and the connection reliability between the winch wheel and the winch frame can be improved, ensuring smooth transmission of the wire rope during the winding and unwinding process, reducing operating vibration and loosening risks, thereby improving the stability and safety of the ventilation mast lifting and adjustment process.

[0014] Optionally, the support base is a hollow box structure, and the support base is equipped with reinforcing ribs inside to improve the overall load-bearing strength and anti-overturning ability.

[0015] By adopting the above technical solutions, the overall weight of the support base can be reduced while improving structural rigidity and load-bearing capacity, enhancing the stability of the ventilated mast under lifting and navigation vibration conditions, and effectively improving the device's anti-overturning ability and long-term reliability.

[0016] Optionally, the ventilated mast adopts a metal tubular structure and its outer surface is coated with an anti-corrosion coating to improve its corrosion resistance in humid and methanol environments.

[0017] By adopting the above technical solutions, the overall strength and bending resistance of the ventilated mast can be improved by using a metal tubular structure, and the corrosion impact of humid and methanol volatilization environments on the metal surface can be reduced by using an anti-corrosion coating, thereby extending the service life of the ventilated mast and improving operational safety.

[0018] Optionally, the top of the ventilated mast is provided with a rainproof cap structure, which covers the opening of the ventilated mast and forms a ventilation gap with the ventilated mast.

[0019] By adopting the above technical solutions, while ensuring the normal ventilation and exhaust function of the ventilated mast, rainwater and debris are prevented from entering the interior of the ventilated mast, reducing the risk of moisture, blockage and corrosion of the pipeline, thereby improving the stability and reliability of the ventilated system.

[0020] Optionally, a limiting block is provided between the support rod and the support base to limit the range of the installation angle A of the support rod.

[0021] By adopting the above technical solution, the installation angle of the support rod can be effectively limited, avoiding excessive deflection or displacement of the installation position of the support rod during the stress process, improving the overall support stability, and ensuring the stress reliability and operational safety of the ventilated mast during the lifting and lowering process.

[0022] Optionally, the wire rope hook is a detachable connection structure, and the wire rope hook 10 is connected to the wire rope via a pin or shackle.

[0023] By adopting the above technical solution, rapid disassembly and maintenance of wire ropes and wire rope hooks can be achieved, which facilitates the inspection, replacement and daily maintenance of the ventilated mast, while improving the assembly flexibility and reliability of the connection parts.

[0024] Optionally, a buffer pad is provided between the ventilated mast and the support base. The buffer pad is located at the pitch contact position of the ventilated mast to reduce impact and wear during the overturning process.

[0025] By adopting the above technical solution, the contact parts can be buffered and damped during the pitching and tilting of the ventilated mast, reducing the direct impact and friction wear between metal components, improving structural durability, reducing the risk of loosening of connection parts, and improving overall operational stability and service life.

[0026] Optionally, the winch is a manual winch or an electric winch, and the winch is equipped with a self-locking mechanism to keep the ventilated mast stable in the adjusted pitch position.

[0027] By adopting the above technical solution, manual or electric drive can be selected according to usage requirements to achieve flexible lifting and lowering adjustment of the ventilated mast. At the same time, the self-locking mechanism reliably locks the position of the wire rope after operation stops, preventing the mast from falling or swaying under external force, thereby improving the stability of the pitch position and the safety of use.

[0028] Optionally, the ventilated mast is provided with a ventilated channel inside, which is connected to the ventilated mast and is used to exhaust the gas in the methanol fuel tank to a safe area.

[0029] By adopting the above technical solution, a continuous gas flow channel can be formed inside the ventilated mast, so that the volatile gases generated in the methanol fuel tank can be smoothly transported to the ventilated mast outlet and released in a high-level safe area, effectively reducing the risk of pressure accumulation and flammable gas accumulation in the tank, and improving the overall ventilation and exhaust safety and operational reliability of the ship.

[0030] In summary, this application includes at least one of the following beneficial technical effects: By setting up a linkage drive mechanism consisting of a winch, wire rope, and lifting wheel, the ventilated mast can be smoothly adjusted for pitching and tilting without disassembly, while meeting the requirements for high-level safe emissions and low-altitude navigation, thus improving the adaptability and ease of operation of the device. By setting up supporting base reinforcement structures, limit blocks and buffer pads, the overall structural load-bearing capacity and anti-overturning capacity are improved, the impact and wear during the lifting and falling process are reduced, and the long-term operational stability and safety and reliability are improved. By incorporating anti-corrosion coatings, rainproof cap structures, and internal ventilation channels, the system's corrosion resistance and protection capabilities in humid and methanol-containing environments are enhanced, ensuring smooth and reliable gas emission and extending the device's service life. Electric / hydraulic systems enhance the automation and convenience of operation, while manual / winch systems highlight the simplicity and reliability of the structure. In addition, various structural innovations bring additional advantages such as reduced costs, lightweight design, and enhanced stability, ensuring the navigation safety of inland waterway vessels. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of an embodiment of this application.

[0032] Figure 2 yes Figure 1 The left view.

[0033] Figure 3 yes Figure 1 Top view.

[0034] Figure 4 yes Figure 1 A schematic diagram of position I in the middle.

[0035] Figure 5 yes Figure 1 A schematic diagram of position II in the middle.

[0036] Figure 6 yes Figure 1 A schematic diagram of position III in the middle.

[0037] Explanation of reference numerals in the attached drawings: 1. Support base; 2. Bolt 1; 3. Bolt 2; 4. Support rod; 5. Lifting wheel; 6. Nut 1; 7. Nut 2; 8. Winch; 9. Wire rope; 10. Wire rope hook; 11. Ventilation mast; 12. Ventilation mast. Detailed Implementation

[0038] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0039] This application discloses a methanol-powered, retractable, breathable mast for inland waterway vessels. (See also...) Figures 1-3 The bottom of the support base 1 is provided with a foot fixed to the installation platform. A winch 8 is provided near the foot of the support base 1. A wire rope 9 is coiled on the winch 8. A support rod 4 extending outward at the upper end of the winch 8 is provided. The bottom of the support rod 4 is connected to the bracket at the axial position of the support base 1 by bolt 3. The angle A formed by the support rod 4 and the support base 1 is an acute angle. A lifting wheel 5 is installed at the end of the support rod 4 away from the support base 1. A wire rope 9 is axially and partially connected to the inner groove of the lifting wheel 5, and the wire rope 9 drives the lifting wheel 5 to rotate synchronously. A ventilated mast 11 is installed on the top of the support base 1. One end of the ventilated mast 11 is embedded in the top of the support base 1 and connected by bolt 2. The ventilated mast 11 can pitch and move around bolt 2 as a fulcrum, and the angle B between the ventilated mast 11 and the support base 1 changes synchronously. The ventilated mast 11 is located away from the support base. A ventilated mast 12 is provided at one end of the ventilated mast 11. A wire rope hook 10 is provided on the inner side of the ventilated mast 12. The wire rope hook 10 is connected to the head of the wire rope 9. When the winch 8 rotates counterclockwise and clockwise, the winch 8 simultaneously winds and releases the wire rope 9. The wire rope 9 extends along the lifting wheel 5 simultaneously, pulling the position of the wire rope hook 10 up and down. The ventilated mast 11 and the ventilated mast 12 are adjusted in a pitching motion with the bolt 2 as the fulcrum, and the angle B changes synchronously.

[0040] like Figure 1-6 As shown, the support base 1 is used for overall installation on the ship deck or installation platform. Its bottom is provided with a foot structure. The foot is fixedly connected to the ship structure by welding or bolting, thereby ensuring the installation stability and vibration resistance of the entire device. A winch 8 is installed on the side of the support base 1 near the foot seat. The winch 8 can be a manual winch. The winch 8 is fixed on the support base 1 and locked in place by a nut 6. At the same time, the rotating wheel of the winch 8 is connected to the winch frame by a nut 7, thereby ensuring the structural stability and rotational reliability of the winch during the winding and unwinding of the wire rope 9. The wire rope 9 is coiled on the winch 8. The wire rope 9 serves as the main traction component. One end of the wire rope 9 is connected to the wire rope hook 10, and the other end is wound around the drum of the winch 8. The winding and unwinding of the wire rope 9 is achieved by the forward and reverse rotation of the winch 8, thereby realizing the traction control of the ventilated mast 11. In the axial direction of the support base 1, a support rod 4 is set at the upper end of the winch 8. The bottom of the support rod 4 is connected and fixed to the bracket of the support base 1 by bolt 2 3. The support rod 4 and the support base 1 form an acute angle A structure, thereby forming a stable guide and support structure to guide the force direction of the wire rope 9 and improve the overall force stability. A lifting wheel 5 is provided at the end of the support rod 4 away from the support base 1. The lifting wheel 5 is installed at the end of the support rod 4 through a bearing structure. An inner groove is provided on its outer circumference. The wire rope 9 partially contacts and is guided in the inner groove of the lifting wheel 5. When the wire rope 9 undergoes axial displacement under the drive of the winch 8, the wire rope 9 rolls and is guided along the lifting wheel 5, thereby driving the lifting wheel 5 to rotate synchronously. The axial displacement of the wire rope 9 drives the lifting wheel 5 to rotate, reducing the friction between the wire rope and the structural components and improving the transmission efficiency and service life. A ventilated mast 11 is installed on the top of the support base 1. The ventilated mast 11 adopts a metal tubular structure. One end of it is embedded in the top of the support base 1 and is fixed by bolt 2. This allows the ventilated mast 11 to pitch and swing with bolt 2 as the pivot point. The angle B formed between the ventilated mast 11 and the support base 1 can change synchronously with the raising and lowering of the wire rope 9, thereby realizing the raising and lowering action of the ventilated mast 11. A ventilated mast 12 is provided at the end of the ventilated mast 11 away from the support base 1. The ventilated mast 12 is used to exhaust the gas generated inside the methanol fuel tank or cargo tank to a safe height. A rainproof cap structure is provided on the top of the ventilated mast 12. The rainproof cap covers the opening of the ventilated mast 12 and forms a ventilation gap with the ventilated mast 12, thereby ensuring the exhaust function while preventing rainwater and debris from entering the internal pipes. A wire rope hook 10 is installed on the inner side of the ventilated mast 11 near the ventilated mast 12. The wire rope hook 10 is detachably connected to the wire rope 9 via a pin or shackle, which facilitates maintenance, installation and replacement. When the winch 8 rotates forward or reverses, the winch 8 drives the wire rope 9 to coil or release synchronously. The wire rope 9 moves along the lifting wheel 5 and applies traction force to the wire rope hook 10, thereby enabling the ventilated mast 11 to pitch around bolt 2, so that the ventilated mast 11 and the ventilated mast 12 can be raised and lowered synchronously. To improve structural stability, a limit block is installed between the support rod 4 and the support base 1 to limit the installation angle A range of the support rod 4, thereby preventing excessive deflection of the support rod during the stress process and improving structural safety. At the same time, a buffer pad is installed between the ventilated mast 11 and the support base 1. The buffer pad is arranged at the pitch contact position of the ventilated mast 11 and plays a shock absorption and buffering role during the mast raising and lowering process, reducing impact wear between metal structures and improving service life. During operation, the winch 8 is equipped with a self-locking mechanism. When the ventilated mast 11 is adjusted to the target angle, the self-locking mechanism can prevent the wire rope 9 from slipping back, thereby stabilizing the pitch position of the ventilated mast 11 and avoiding angle changes caused by ship vibration or external forces, thus improving safety. The support base 1 is preferably a hollow box structure with reinforcing ribs inside. The reinforcing ribs improve the overall rigidity and bending and torsional resistance of the support base, thereby enhancing the device's anti-overturning ability and structural stability under complex navigation conditions. The ventilation mast 11 has a ventilation channel inside, which is connected to the ventilation mast 12, thereby guiding the volatile gas in the methanol fuel tank to the high-level emission area through the internal pipeline, realizing safe depressurization and gas diffusion, and reducing the risk of flammable gas accumulation in the tank. The outer surface of the ventilated mast 11 is preferably coated with an anti-corrosion coating to improve its corrosion resistance in humid and methanol environments, delay the aging of metal materials, and improve its overall service life. The working process of this embodiment is as follows: When the ship needs to navigate in the normal waterway, the ventilated mast 11 is in a vertical working state, and the ventilated mast 12 is in a high-level exhaust position. Gas generated in the fuel tank or cargo hold enters the ventilated mast 12 through the ventilated channel and is then discharged to a safe area. When the ship needs to pass through a bridge or a low-clearance area, the winch 8 is started. The winch 8 rotates in the reverse direction to release the wire rope 9. The wire rope 9 gradually loosens under the guidance of the lifting wheel 5, causing the wire rope hook 10 to descend, thereby driving the ventilated mast 11 to tilt and fold downwards around bolt 2, achieving the purpose of reducing the overall height. After passing through the obstacle area, the winch 8 rotates in the forward direction to tighten the wire rope 9, so that the ventilated mast 11 returns to a vertical state. The ventilated mast features a winch traction mechanism, a lifting wheel guide structure, and an articulated mast design, enabling controllable raising and lowering. Crew members crank a handle to rotate the internal drum, reeling in (generating tension) or releasing (releasing tension) the rope. It typically includes a ratchet self-locking mechanism, allowing it to lock at any position to prevent accidental mast slippage. The wire rope and pulley system form the transmission system, with one end connected to the winch and the other to the mast. Cleverly arranged movable or guide pulleys can change the direction of force, saving effort or adjusting speed. The mast's base is not fixed but connected to the ship's hull base via a strong hinge, allowing the mast to swing back and forth around this center.

[0041] The key technical points of this solution are: compared with complex electric or hydraulic systems, the mechanical structure of a manual winch with wire rope and pulleys is simpler, reducing design difficulty and failure rate. It eliminates expensive components such as motors and hydraulic pumps, directly reducing initial manufacturing costs. Furthermore, due to its simple structure, crew members can perform routine maintenance and simple repairs themselves, greatly reducing long-term maintenance costs.

[0042] Alternative implementation schemes for this technical solution In another embodiment, the methanol inland waterway vessel tilting ventilated mast of this application still includes a support base 1, a ventilated mast 11 and a ventilated mast 12, but its tilting drive mechanism is replaced by a screw push-pull drive structure or a hydraulic drive structure instead of the original "winch + wire rope + lifting wheel" structure. Specifically, the top of the support base 1 and the ventilated mast 11 are still connected by bolt 2, so that the ventilated mast 11 can achieve pitching motion around the hinge point; the ventilated mast 11 is still provided with a ventilated channel and connected to the ventilated mast 12 to realize the high-level emission function of methanol fuel tank gas. In terms of the drive structure, a screw push-pull drive structure or a hydraulic drive structure is adopted. When the screw push-pull drive structure is adopted, an electric push rod or a screw nut mechanism is set inside or on the side of the support base 1. The front end of the push rod is hinged to the connecting lug set in the middle of the ventilation mast 11. When the motor drives the screw to rotate forward and backward, the push rod realizes the extension and retraction movement, thereby pushing the ventilation mast 11 to pitch and tilt around the bolt 2. This structure replaces the steel wire rope traction force with linear thrust, realizing structural simplification and precise control. When a hydraulic drive scheme is adopted, a hydraulic cylinder is installed in the support base 1. One end of the hydraulic cylinder is hinged to the support base 1, and the other end is connected to the middle of the ventilated mast 11. The extension and retraction of the cylinder is controlled by the hydraulic system, thereby realizing the lifting and pitching of the ventilated mast 11. The hydraulic system can be equipped with a check valve or a pressure holding valve to achieve stable holding of the ventilated mast at any angle. In both of the above alternatives, an angle limiting structure can be set to limit the maximum pitch angle B of the ventilated mast 11 to prevent excessive overturning; at the same time, buffer pads or damping structures can be set at the hinge points to reduce the impact load during the lifting and lowering process and improve the structural durability.

[0043] Based on this application, in order to further improve the intelligence level, safety redundancy capability and environmental adaptability of the tiltable ventilated mast of methanol inland waterway vessels, the following technical upgrades can be made to the structure and control method; I. Intelligent Control and Status Monitoring A control module and sensor components, including an angle sensor, a tension sensor and a limit detection switch, are integrated on the support base 1 or winch 8 of the ventilated mast 11. These components are used to monitor the pitch angle B of the ventilated mast, the stress state of the wire rope 9 and the operating status of the winch in real time. The control module can automatically control the raising and lowering speed of the winch 8 according to the preset parameters of the bridge clearance, so as to realize the semi-automatic or fully automatic raising and lowering control of the ventilated mast, thereby reducing the dependence on manual operation and improving navigation safety. Furthermore, a ship navigation control system or a bridge height restriction database can be introduced to achieve automatic early warning and linkage control when the ventilated mast approaches the height restriction area, enabling the RRR system to have a certain intelligent decision-making capability.

[0044] II. Redundant Safety and Failure Prevention Structure To improve the system's safety redundancy, a second safety restraint mechanism, such as an auxiliary safety cable or mechanical locking arm structure, can be added in addition to the wire rope 9. When the main drive mechanism (winch or wire rope system) malfunctions, the safety locking mechanism can immediately lock the ventilated mast 11 to prevent accidental fall or uncontrolled overturning. At the same time, a double hinge or widened bushing structure can be set at the hinge position of bolt 12 to improve the shear resistance of the hinge part and adapt to the long-term vibration and impact load conditions of the ship.

[0045] III. Power System and Drive Method In addition to manual and electric winches, this system can be expanded to accommodate various drive configurations: Electric + manual dual-mode drive structure: In case of electric drive failure, emergency lifting and tilting can be achieved through manual mode; Hydraulic-electric hybrid drive structure: High torque output is achieved using hydraulics, while the electric system is used for precise control; Energy recovery drive structure: During the descent of the ventilated mast, potential energy is recovered through the power generation module, thereby improving energy utilization efficiency.

[0046] IV. Structural Lightweighting and Modularization The support base 1 and support rod 4 can be further made of aluminum alloy or composite material structure, and can be quickly disassembled and assembled through modular design. The ventilated mast 11 can be designed as a segmented structure, which can be combined into different heights by plug-in or flange connection to adapt to the needs of different ship types. At the same time, the winch system, guide wheel system and control system can be integrated into independent modular units, which facilitates batch installation and subsequent maintenance and upgrade of ships.

[0047] V. Environmental Adaptability and Safety Protection Expansion For methanol's volatility and low-temperature, high-humidity environments, the following protective designs can be further expanded: Install flame arresters or backfire prevention structures in the ventilation channels to improve the safety of gas emissions; Add a corrosion-resistant coating or stainless steel cladding to the outer layer of the wire rope 9 to improve its corrosion resistance; A gas diffusion and flow guiding structure is added inside the ventilated mast 12 to ensure uniform diffusion of the emitted gas and avoid excessively high local concentrations. A sealed drainage structure is installed inside the support base 1 to prevent water accumulation from affecting the operation of the winch.

[0048] VI. Digitalization and Remote Monitoring A remote monitoring system can be further introduced, which can upload the status data of the ventilated mast to the ship control center or shore-based management platform through a wireless communication module, so as to realize remote diagnosis and maintenance reminders. At the same time, it can be combined with navigation big data to predict and analyze the usage frequency, load conditions and fatigue life of the ventilated mast, thereby improving the scientific nature of maintenance plans.

[0049] Through the above-mentioned technological expansion and extension, this application can not only realize the basic reversible ventilation function, but also further develop towards intelligent control, redundant safety protection, modular structural design and digital management, thereby improving the system's adaptability, reliability and engineering application value in complex inland waterway shipping environments.

[0050] The implementation principle of a methanol-powered inland waterway vessel tiltable and breathable mast according to an embodiment of this application is as follows: By setting a hinged connection structure between the support base 1 and the breathable mast 11, the breathable mast 11 can pitch and rotate with bolt 2 as the fulcrum. At the same time, the winch 8 drives the wire rope 9 to be wound and released, and the lifting wheel 5 on the support rod 4 guides and transmits force to the wire rope 9, thereby converting the rotational motion of the winch into a linear traction force on the wire rope hook 10, thus realizing the control of the lifting and tilting of the breathable mast 11. When the ship is in normal navigation, the ventilated mast 11 remains vertical, allowing the ventilated channel and ventilated mast 12 to discharge the volatile gases in the methanol fuel tank to a high-level safe area. When the ship passes under a bridge or in a low-clearance area, the winch 8 releases the wire rope 9, and the ventilated mast 11 gradually tilts down around the hinge point under its own weight and traction, thereby reducing its overall height. By tightening the wire rope 9 by the winch 8, the ventilated mast 11 can be restored to its working vertical position, thus achieving rapid switching and safe adaptation of the ventilated mast under different navigation conditions.

[0051] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A methanol-powered inland waterway vessel with a tiltable, breathable mast, characterized in that: Includes a support base (1), the bottom of which is provided with feet fixed to the mounting platform; A winch (8) is provided near the foot of the support base (1), and a steel wire rope (9) is coiled in the winch (8). The support base (1) is axially located at the upper end of the winch (8) and is provided with a support rod (4). The bottom of the support rod (4) is connected to the bracket at the axial position of the support base (1) by bolt two (3). The angle A formed by the support rod (4) and the support base (1) is an acute angle. The support rod (4) is provided with a lifting wheel (5) at one end away from the support base (1). The wire rope (9) is axially partially connected to the inner groove of the lifting wheel (5). When the wire rope (9) is axially displaced, the wire rope (9) synchronously drives the lifting wheel (5) to rotate. The top of the support base (1) is provided with a breathable mast (11). One end of the breathable mast (11) is embedded in the top of the support base (1) and connected by a bolt (2). The breathable mast (11) can pitch and move with the bolt (2) as the fulcrum. The angle B between the breathable mast (11) and the support base (1) changes synchronously. The ventilated mast (11) has a ventilated mast (12) at one end away from the support base (1). The ventilated mast (11) has a wire rope hook (10) on the inner side of the ventilated mast (12). The wire rope hook (10) is connected to the head of the wire rope (9). When the winch (8) rotates counterclockwise and clockwise, the winch (8) simultaneously winds and releases the wire rope (9). The wire rope (9) extends along the lifting wheel (5) to pull the wire rope hook (10) up and down. The ventilated mast (11) and the ventilated mast (12) are adjusted in a pitching motion with the bolt (2) as the fulcrum, and the angle B changes synchronously.

2. The methanol-powered inland waterway vessel's tiltable ventilated mast as described in claim 1, characterized in that: The winch (8) is fixed to the support base (1) with a nut (6), and the rotating wheel of the wire rope (9) is connected to the winch (8) with a nut (7).

3. The methanol-powered inland waterway vessel's tiltable ventilated mast as described in claim 1, characterized in that: The support base (1) is a hollow box structure, and the support base (1) is equipped with reinforcing ribs to improve the overall load-bearing strength and anti-overturning ability.

4. The methanol-powered inland waterway vessel's tiltable ventilated mast as described in claim 1, characterized in that: The breathable mast (11) adopts a metal tubular structure and its outer surface is coated with an anti-corrosion coating to improve its corrosion resistance in humid and methanol environments.

5. The methanol-powered inland waterway vessel's tiltable ventilated mast as described in claim 1, characterized in that: The top of the ventilated mast (12) is provided with a rainproof cap structure, which covers the opening of the ventilated mast (12) and forms a ventilation gap with the ventilated mast (12).

6. The methanol-powered inland waterway vessel's tiltable ventilated mast as described in claim 1, characterized in that: A limiting block is provided between the support rod (4) and the support base (1) to limit the range of the installation angle A of the support rod (4).

7. The methanol-powered inland waterway vessel's tiltable ventilated mast as described in claim 1, characterized in that: The wire rope hook (10) is a detachable connection structure, and the wire rope hook (10) is connected to the wire rope (9) by a pin or shackle.

8. The methanol-powered inland waterway vessel's tiltable ventilated mast as described in claim 1, characterized in that: A buffer pad is provided between the ventilated mast (11) and the support base (1). The buffer pad is located at the pitch contact position of the ventilated mast (11) to reduce the impact and wear during the overturning process.

9. A methanol-powered inland waterway vessel with a tilting, breathable mast as described in claim 1, characterized in that: The winch (8) includes a manual winch and an electric winch. The winch (8) is equipped with a self-locking mechanism to keep the ventilated mast (11) stable in the adjusted pitch position.

10. A methanol-powered inland waterway vessel with a tilting, breathable mast as described in claim 1, characterized in that: The ventilation mast (11) is provided with a ventilation channel inside, which is connected to the ventilation mast (12) and is used to exhaust the gas in the methanol fuel tank to a safe area.

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