Automatic water feeding device and method for a port machine water storage tank

Abstract

The application discloses an automatic water feeding device and method for a water storage tank of a port machine. The automatic water feeding device comprises: a ground water feeding device installed on a dam foundation and communicated with a water supply point reserved on the dam foundation, wherein a distance measuring sensor in communication connection with a positioning module of the port machine is arranged on the ground water feeding device; a water tank arranged on the port machine, wherein the port machine is configured to control the port machine to move according to a detection signal of the distance measuring sensor so that the water tank is docked with the ground water feeding device, and the ground water feeding device is configured to deliver liquid from the water supply point to the water tank; a buffer water tank arranged below the water storage tank and configured to receive the liquid from the water tank; and a liquid transfer device arranged between the buffer water tank and the water storage tank and configured to deliver the liquid in the buffer water tank to the water storage tank. Thus, the automatic water feeding operation of the water storage tank is realized, the safety hazards existing in the manual field operation are excluded, the influence on the operation of the port machine is reduced, and the water feeding efficiency and the dust removal and watering endurance are improved.

Description

Technical Field

[0001] This application relates to the field of port machinery technology, and in particular to an automatic water filling device and method for a port machinery water tank. Background Technology

[0002] Dry bulk cargo terminals typically handle dry bulk materials such as coal and ore. Due to the inherent characteristics of these materials, dust pollution is a concern during operations. In accordance with environmental protection requirements, it is necessary to address the dust pollution generated during the operation of port machinery (such as stacker cranes, reclaimers, and ship loaders). Therefore, water sprinklers are installed at dust-prone areas of the port machinery (such as the bucket wheel of the reclaimer, the discharge port of the stacker crane, and the discharge shovel of the ship loader). To ensure the continuous operation of the water sprinkler system during operations, the water tanks of the port machinery's water sprinkler system need to be replenished regularly to guarantee a water supply.

[0003] Currently, there are five main methods for filling the water tanks of port machinery, and the following problems exist: 1. Manual Water Supply: This method involves manually connecting a surface water source to the port machinery's water tank using a water hose. This method relies on manual operation, has low automation, is slow, and poses safety hazards.

[0004] 2. Ground-level water tank supply: Open or closed water tanks are laid along the port machinery's operating track, and self-priming pumps are used to draw water from the tanks to a storage tank for real-time water supply. This method requires the ground-level water tanks to cover the entire port machinery's operating area, resulting in a large footprint, excessively high costs for water supply insulation and antifreeze, and the open-air water tanks are susceptible to pollution, making it difficult to guarantee water quality.

[0005] 3. Water Cable Reel Water Supply: A reel structure containing a water cable is installed on the port machinery. The water cable connects the water storage tank to the ground water source and automatically retracts and extends as the port machinery moves, thus achieving real-time water supply. This method uses a flexible water cable reel for transportation, has a shorter lifespan, a more complex cable reel structure, and presents greater challenges in heat tracing and insulation.

[0006] IV. Water Supply by Transfer Vehicle: A transfer vehicle is deployed on the port machinery's operating track. When water needs to be added, it is moved to the port machinery location to fill the water storage tank. This water supply method requires the installation of supporting facilities for the transfer vehicle along the line, and regular maintenance of the transfer vehicle, resulting in high maintenance costs.

[0007] 5. Fixed-point water supply via lift shaft: A lift shaft is installed on the side of the port machinery's running track, with a built-in retractable pipe that can be raised and lowered. When the port machinery reaches the corresponding position, the control pipe extends and connects to the water supply point of the storage tank, and a booster pump is used to achieve fixed-point water supply. This water supply method relies on a relatively complex mechanical structure and has low reliability. Summary of the Invention

[0008] The summary section introduces a series of simplified concepts, which will be further explained in detail in the detailed description section. This section of the application is not intended to limit the key features and essential technical features of the claimed technical solution, nor is it intended to determine the scope of protection of the claimed technical solution.

[0009] This application aims to address at least one of the technical problems existing in the prior art or related technologies.

[0010] An embodiment of this application provides an automatic water supply device for a port machinery water tank, comprising: a ground water supply device installed on a dam foundation and connected to a pre-reserved water supply point on the dam foundation, the ground water supply device being equipped with a ranging sensor communicatively connected to the positioning module of the port machinery; a water tank disposed on the port machinery, the port machinery being configured to move according to the detection signal of the ranging sensor to dock the water tank with the ground water supply device, the ground water supply device being configured to transport liquid from the water supply point to the water tank; a buffer water tank disposed on the port machinery, located below the water tank, configured to receive liquid from the water tank; and a liquid transfer device disposed between the buffer water tank and the water tank, configured to transfer liquid from the buffer water tank to the water tank.

[0011] For example, the water tank is located between the two balance beams of the port machinery and below the balance beams, the water storage tank is located above the balance beams, and the buffer water tank is suspended below the balance beam corresponding to the water storage tank.

[0012] For example, the liquid transfer device includes: a transfer pipe, a fluid controller, a filter, and a pump body. The transfer pipe connects the outlet of the buffer tank and the inlet of the storage tank. The fluid controller, the filter, and the pump body are sequentially arranged on the transfer pipe along the direction from the outlet of the buffer tank to the inlet of the storage tank. The liquid transfer device also includes a first heat insulation component, which is disposed on the surface of the transfer pipe, the fluid controller, the filter, and the pump body.

[0013] For example, the buffer tank includes: a tank body, which has an outlet, an inlet, a manhole, and a drain outlet. The outlet is located below the side wall of the tank body, the inlet is located above the side wall of the tank body and connected to the outlet of the water tank, the manhole is located on the top wall of the tank body, and the drain outlet is located on the bottom wall of the tank body; a cover, which is movably connected to the tank body to open and close the manhole; a first ladder, which is located inside the tank body below the manhole; a level gauge, which is installed in the tank body for detecting the liquid level inside the tank; a second ladder, which is located outside the tank body and connected to the side wall of the tank body; an overflow pipe, which is located above the side wall of the tank body; an insulation shell, which surrounds the side wall of the tank body; a heater, which is located below the side wall of the tank body for heating the liquid inside the tank; and a drain pipe, which is located outside the tank body and connected to the drain outlet, and is equipped with a drain valve.

[0014] For example, the water tank includes: a tank body, which is configured as a strip structure, with an opening on a first side along the length of the tank body and an outlet on a second side along the length of the tank body; a water tank curtain, which is connected to the first side of the tank body and the two sides adjacent to the first side to cover the opening, and a partial ground water supply device is adapted to extend through the water tank curtain into the tank body; and a pressure plate, which is disposed at the top front of the water tank curtain; wherein, the tank body includes at least two sub-tanks connected in sequence, and adjacent sub-tanks are connected by elastic members.

[0015] For example, the ground water supply device includes: a main water pipe, a multi-port water pipe, a branch water pipe, and an upper water pipe extending above the dam foundation, wherein the main water pipe is connected to the water supply point and the inlet end of the multi-port water pipe, the branch water pipe is connected to the outlet end of the multi-port water pipe and the first end of the upper water pipe, and the second end of the upper water pipe extends above the dam foundation and is configured to connect with the water channel; wherein the main water pipe, the multi-port water pipe, and the branch water pipe are located below the track of the dam foundation.

[0016] For example, the ground water supply device further includes: a main line butterfly valve, installed on the main line water pipe, for controlling the on / off state of the main line water pipe; a branch line butterfly valve, installed between the branch line water pipe and the multi-way water pipe, for controlling the on / off state of the branch line water pipe; a branch line solenoid valve, installed on the branch line water pipe, for controlling the on / off state of the branch line water pipe; and a second insulation component, installed on the outside of the main line water pipe, the multi-way water pipe, the branch line water pipe, and the water supply pipe.

[0017] For example, the automatic water supply device for the port machinery water tank further includes: a water tank support, which includes a crossbeam and a bracket, with both ends of the crossbeam connected to two balance beams, the bracket being mounted on the crossbeam, and the water tank being connected to the bracket; a water tank support, which includes a base and a frame, with the top of the frame connected to the balance beam, the bottom of the frame extending below the balance beam and connected to the base, and the buffer water tank being connected to the base.

[0018] An embodiment of this application also provides an automatic water filling method for a port machinery water tank, utilizing the automatic water filling device for the port machinery water tank of any of the foregoing embodiments. The method includes: Based on the fact that the liquid in the water storage tank and the buffer tank is at a low level, the port machinery is controlled to move along the dam foundation to the target water supply pipe of the ground water supply device and connect with the water tank according to the detection signal of the ranging sensor. The solenoid valve on the branch water pipe corresponding to the target water supply pipe is opened until the liquid in the buffer tank reaches a high water level, at which point the solenoid valve is closed. When the liquid level in the buffer tank is higher than the low water level, the pump of the liquid transfer device starts to work until the liquid level in the storage tank is high. Then, the pump stops working, and the solenoid valve of the control branch opens again until the liquid level in the buffer tank is high. Then, the solenoid valve of the control branch closes again.

[0019] For example, the method further includes: When the target water pipe and water tank are not connected, the pump starts working when the liquid level in the storage tank is low and the liquid level in the buffer tank is higher than the low level, until the liquid level in the buffer tank is low or the liquid level in the storage tank is high, at which point the pump stops working.

[0020] The automatic water supply device and method for a port machinery water tank provided in this application embodiment include a ground-based water supply device installed on the dam foundation, and a water tank, a buffer tank, and a liquid transfer device installed on the port machinery. The water transfer system is installed between the port machinery's water tank and the buffer tank, with the buffer tank and water tank located below the water tank. By installing a distance measuring sensor on the ground-based water supply device, which is communicatively connected to the port machinery's positioning module, when the water tank needs replenishment, the distance measuring device and positioning module can guide the port machinery to move, accurately aligning the water tank with the automatic water supply device. Once the water tank is connected to the automatic water supply device, the device delivers liquid from the water supply point to the tank. The liquid then flows into a buffer tank, and under the action of a liquid transfer device, the liquid in the buffer tank is transferred to the port machinery's water storage tank. This achieves automatic water supply to the storage tank, eliminating the safety hazards associated with manual on-site operation. Furthermore, the water supply device provided in this embodiment delivers water faster than manual water supply, has less impact on port machinery operations, effectively increases the operating efficiency of the port machinery, and features a simple structure, low manufacturing cost, reduced maintenance costs, stronger climate adaptability, improved water supply efficiency and dust suppression and water spraying endurance, making it suitable for widespread application.

[0021] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0022] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. Wherein: Figure 1 One of the structural schematic diagrams of the automatic water filling device for the port machinery water storage tank provided in the embodiments of this application is shown; Figure 2 One of the top views of the automatic water supply device for the port machinery water tank provided in the embodiments of this application is shown; Figure 3 One of the structural schematic diagrams of the liquid transfer device provided in the embodiments of this application is shown; Figure 4 One of the structural schematic diagrams of the buffer tank provided in the embodiments of this application is shown; Figure 5 A second schematic diagram of the structure of the buffer tank provided in an embodiment of this application is shown; Figure 6 A schematic diagram of the structure of a level gauge provided in an embodiment of this application is shown; Figure 7 One of the structural schematic diagrams of the water tank provided in the embodiments of this application is shown; Figure 8 One of the structural schematic diagrams of the ground water supply device provided in the embodiments of this application is shown; Figure 9 A second schematic diagram of the structure of the ground water supply device provided in an embodiment of this application is shown; Figure 10 One of the structural schematic diagrams of a water tank installation provided in an embodiment of this application is shown; Figure 11 One of the structural schematic diagrams of the buffer water tank installation provided in the embodiments of this application is shown; Figure 12 One of the flowcharts of the automatic water filling method for the harbor machinery water tank provided in the embodiments of this application is shown.

[0023] in, Figures 1 to 11 The correspondence between the reference numerals and component names in the attached drawings is as follows: 100 Ground water supply device, 110 Main water pipe, 120 Multi-port water pipe, 130 Branch water pipe, 140 Water supply pipe, 140a Water supply pipe A, 140b Water supply pipe B, 140c Water supply pipe C, 150 Main butterfly valve, 160 Branch butterfly valve, 170 Branch solenoid valve, 200 Water tank, 210 Tank body, 211 Opening, 212 Outlet, 213 Sub-tank body, 220 Water tank curtain, 221 Main curtain, 222 Side curtain, 230 Pressure plate, 240 Elastic element, 300 Buffer water tank, 310 Tank body, 311 Outlet, 312 Inlet, 313 Manhole, 32 0. Cover, 330 First Ladder, 340 Level Gauge, 341 Converter, 342 Insertion Rod, 343 Float, 350 Second Ladder, 360 Overflow Pipe, 370 Insulation Shell, 380 Heater, 390 Drain Pipe, 391 Drain Valve, 400 Liquid Transfer Device, 410 Transfer Pipe, 420 Fluid Controller, 430 Filter, 440 Pump Body, 500 Water Tank Support, 510 Crossbeam, 520 Bracket, 600 Water Tank Support, 610 Base, 620 Frame, 700 Dam Foundation, 710 Water Supply Point, 810 Water Storage Tank, 820 Balance Beam, 830 Walking Wheel Set. Detailed Implementation

[0024] The following description provides numerous specific details to offer a more thorough understanding of the technical solutions provided in this application. However, it will be apparent to those skilled in the art that the technical solutions provided in this application can be implemented without one or more of these details.

[0025] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms “comprising” and / or “including” are used in this specification, they indicate the presence of the stated features, integrals, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or combinations thereof.

[0026] Exemplary embodiments according to this application will now be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments may be implemented in many different forms and should not be construed as being limited to the embodiments set forth herein. It should be understood that these embodiments are provided so that the disclosure of this application is thorough and complete, and that the concept of these exemplary embodiments is fully conveyed to those skilled in the art.

[0027] like Figure 1 and Figure 2 As shown in the embodiment of this application, an automatic water supply device for a port machinery water tank is provided, including: a ground water supply device 100, which is installed on a dam foundation 700 and connected to a water supply point 710 reserved on the dam foundation 700; a distance measuring sensor is provided on the ground water supply device 100 and is communicatively connected to the positioning module of the port machinery; and a water tank 200, which is disposed on the port machinery, and the port machinery is configured to control the movement of the port machinery according to the detection signal of the distance measuring sensor to move the water tank 200. 0 is connected to the ground water supply device 100, which is configured to transport liquid from the water supply point 710 to the water tank 200; the buffer water tank 300 is located on the port machinery, below the water storage tank 810, and is configured to receive liquid from the water tank 200; the liquid transfer device 400 is located between the buffer water tank 300 and the water storage tank 810, and is configured to transfer the liquid in the buffer water tank 300 to the water storage tank 810.

[0028] The port machinery includes a water tank 810, which supplies water to the dust removal and spraying system of the port machinery. Specifically, the port machinery also includes a main body, a balance beam 820, and a set of traveling wheels 830. The balance beam 820 is located between the main body and the traveling wheels 830, supporting the main body of the port machinery. The water tank 810 can be installed on the main body. The traveling wheels 830 are located between the main body and the track of the dam foundation 700 to enable the port machinery to move on the track. It is understood that a water supply point 710 is set on the dam foundation 700, typically for supplying water to the spray gun station.

[0029] The automatic water supply device for the port machinery water tank provided in this application embodiment includes a ground water supply device 100 installed on the dam foundation 700, and a water tank 200, a buffer tank 300, and a liquid transfer device 400 installed on the port machinery. The water transfer system is installed between the port machinery's water tank 810 and the buffer tank 300, with the buffer tank 300 and the water tank 200 located below the water tank 810. By installing a distance sensor on the ground water supply device 100, which is communicatively connected to the port machinery's positioning module, when the water tank 810 needs to be replenished, the port machinery can be guided to move by the distance sensor and the positioning module. That is, the port machinery can be controlled to move along the track according to the detection signal of the distance sensor to accurately dock the water tank 200 with the automatic water supply device. When the water tank 200 is connected to the automatic water supply device, the automatic water supply device can transport the liquid from the water supply point 710 to the water tank 200. Then, the liquid in the water tank 200 will flow into the buffer water tank 300. Under the action of the liquid transfer device 400, the liquid in the buffer water tank 300 will be transported to the port machinery's water storage tank 810. Thus, the automatic water supply operation of the water storage tank 810 is realized, eliminating the safety hazards caused by manual on-site operation. At the same time, the water supply device provided in this embodiment has a faster water supply speed than manual water supply, has less impact on port machinery operations, effectively increases the operating efficiency of port machinery, and has a simple structure, low cost, and helps to reduce maintenance costs. It is also more adaptable to different climates, improves water supply efficiency and dust removal and watering endurance, and is suitable for widespread application.

[0030] Furthermore, the automatic water supply device provided in this embodiment, compared to manual water supply, can achieve fully automatic water supply operation, which is more efficient and eliminates the safety hazards caused by manual operation; compared to ground water tank water supply, it occupies less space, is easier to heat and insulate, has stronger climate adaptability, and can be used in low-temperature climates; compared to water cable reel water supply, it simplifies the use of water cable hoses, eliminates the need for a cable reel mechanism, has a longer lifespan, lower cost, and is easy to maintain; compared to transfer vehicle water supply, it simplifies the transfer vehicle and its supporting facilities, resulting in lower cost and simpler installation and maintenance; compared to fixed-point water supply via a lifting shaft, it simplifies the complex positioning and lifting mechanism. Through communication connection between the distance sensor and the positioning module, it can rely on the port machinery's movement for positioning, allowing water supply while moving. It has a simple structure, stable operation, low cost, and is easy to maintain. Specifically, the distance sensor can be a laser distance sensor or other distance sensors. Specifically, the laser distance sensor can be connected to the port machinery's positioning module signal.

[0031] Furthermore, in the automatic water supply device provided in this embodiment, the buffer water tank 300 and the water trough 200 are located below the water storage tank 810. This overcomes the problem of excessive height difference between the water supply point 710 and the port machinery's water storage tank 810. Simultaneously, the buffer water tank 300 can serve as a relay water supply tank for the water storage tank 810, which helps improve the port machinery's dust removal and water spraying endurance. At the same time, it enables automatic water supply to the port machinery around the clock, eliminating safety hazards caused by manual operation. Through the coordinated use of the water trough 200 on the port machinery and the ground water supply device 100 on the dam foundation 700, seamless water supply can be achieved around the clock. The port machinery can achieve water supply while moving and operating, thus replacing the function of the ground water trough.

[0032] Furthermore, multiple ground water supply devices 100 can be arranged along the water supply points 710 on the dam foundation 700. Through the use of distance sensors and port machinery positioning modules, precise control of water supply positioning can be achieved, which helps to reduce water supply positioning time and complete environmentally friendly all-weather operations.

[0033] Specifically, multiple water supply points 710 can be set at intervals along the track on the dam foundation 700, and a ground water supply device 100 can be set at each or multiple water supply points 710.

[0034] like Figure 1 and Figure 2As shown, in some embodiments provided in this application, the water tank 200 is disposed between two balance beams 820 of the port machinery and located below the balance beams 820, the water storage tank 810 is located above one of the balance beams 820, and the buffer water tank 300 is suspended below the balance beam 820 corresponding to the water storage tank 810. This arrangement ensures that the buffer water tank 300 and the water tank 200 are located below the water storage tank 810, overcoming the problem of excessive height difference between the water supply point 710 and the water storage tank 810 of the port machinery, which is beneficial to improving water supply efficiency. At the same time, the balance beams 820 provide reliable support for the buffer water tank 300 and the water tank 200, ensuring the reliability and stability of the connection between the buffer water tank 300 and the water tank 200 and the port machinery.

[0035] like Figure 3 As shown, in some embodiments provided in this application, the liquid transfer device 400 includes: a transfer pipe 410, a fluid controller 420, a filter 430, and a pump body 440. The transfer pipe 410 connects the outlet 311 of the buffer tank 300 and the inlet of the storage tank 810. The fluid controller 420, the filter 430, and the pump body 440 are sequentially arranged on the transfer pipe 410 along the direction from the outlet 311 of the buffer tank 300 to the inlet of the storage tank 810. The liquid transfer device 400 also includes a first heat insulation component, which is disposed on the transfer pipe 410, the fluid controller 420, the filter 430, and the pump body 440.

[0036] This embodiment provides the specific structure of the liquid transfer device 400. The transfer pipe 410 of the liquid transfer device 400 connects the outlet 311 of the buffer tank 300 and the inlet of the storage tank 810. That is, the liquid in the buffer tank 300 passes through the outlet 311 of the buffer tank 300 along the transfer pipe 410, sequentially passing through the fluid controller 420, the filter 430, and the pump body 440, and is finally transported to the storage tank 810 of the port machinery.

[0037] The transfer pipe 410 is used to guide liquid from the buffer tank 300 to the storage tank 810 of the port crane. The fluid controller 420 can be a transfer butterfly valve, which is installed on the transfer pipe 410 in front of the outlet 311 of the buffer tank 300. That is, the fluid controller 420 can be located between the filter 430 and the buffer tank 300. Through the fluid controller 420, it can be manually closed to block the water supply to the buffer tank 300, which facilitates the maintenance and replacement of parts in the liquid transfer device 400, saves the time of emptying the buffer tank 300, and reduces water waste.

[0038] The filter 430 is installed on the transfer pipe 410 in front of the fluid controller 420, that is, the filter 430 is located between the pump body 440 and the fluid controller 420. The filter 430 is used to filter the liquid flowing from the buffer tank 300 to the pump body 440 and the storage tank 810, so as to ensure the cleanliness of the liquid in the storage tank 810.

[0039] The pump body 440 is installed between the filter 430 and the inlet of the water storage tank 810 to provide power to the liquid. Specifically, the pump body 440 can be a centrifugal pump.

[0040] The surfaces of the transfer pipe 410, fluid controller 420, filter 430, and pump body 440 are covered with a first heat insulation component. The first heat insulation component may include electric heat tracing and heat insulation material. Through the first heat insulation component, the liquid transfer device 400 can be used normally in low temperature environment without freezing, thereby improving the environmental adaptability of the liquid transfer device 400.

[0041] like Figure 4 and Figure 5 As shown, in some embodiments provided in this application, the buffer water tank 300 includes: a tank body 310, which is provided with an outlet 311, an inlet 312, a maintenance manhole 313, and a drain outlet. The outlet 311 is located below the side wall of the tank body 310, the inlet 312 is located above the side wall of the tank body 310 and connected to the outlet 212 of the water tank 200, the maintenance manhole 313 is located on the top wall of the tank body 310, and the drain outlet is located on the bottom wall of the tank body 310; a cover 320, which is movably connected to the tank body 310 to open and close the maintenance manhole 313; and a first ladder 330, which is disposed inside the tank body 310 and located at the bottom wall of the tank body 310. Below the manhole 313; a level gauge 340, installed in the housing 310, used to detect the liquid level inside the housing 310; a second ladder 350, located outside the housing 310, on the side wall of the housing 310; an overflow pipe 360, located above the side wall of the housing 310; an insulation shell 370, located on the side wall of the housing 310, on the outside of the housing 310; a heater 380, located below the side wall of the housing 310, used to heat the liquid inside the housing; a drain pipe 390, located outside the housing 310 and connected to the drain outlet; and a drain valve 391, located on the drain pipe 390.

[0042] This embodiment provides the specific structure of the buffer water tank 300. The buffer water tank 300 includes a tank body 310, which serves as the main water storage component. The tank body 310 can be made of stainless steel to prevent rust. The outlet 311 is located below the side wall of the buffer water tank 300, such as at the bottom of the side wall. The liquid transfer device 400, connected to the outlet 311, can pump water into the storage tank 810.

[0043] The maintenance manhole 313 is located at the top of the enclosure 310, facilitating personnel access to the interior for maintenance and cleaning. The first ladder 330 is located inside the enclosure 310, below the maintenance manhole 313, allowing personnel to easily enter and exit the enclosure 310. The cover 320 is movably connected to the enclosure 310 to open and close the maintenance manhole 313. If the cover 320 is located above the maintenance manhole 313, its function is to cover the manhole 313 to prevent foreign objects from entering the enclosure 310 through the manhole 313.

[0044] The level gauge 340 is installed on the top wall of the housing 310, such as... Figure 6 As shown, the level gauge 340 mainly includes: a converter 341, a probe 342, and a float 343. The probe 342 extends from the top to the bottom of the tank 310 of the buffer tank 300. The float 343 installed on it always floats above the water surface. The position of the float 343 is determined by a sensor inside the probe 342, and the position of the float 343 is converted into an electrical signal output by the converter 341, thereby realizing the detection of the liquid level in the buffer tank 300.

[0045] The second ladder 350 is located outside the housing 310 and is connected to the side wall of the housing 310. That is, the second ladder 350 is located on the side of the buffer water tank 3003, which makes it convenient for maintenance personnel to climb to the top of the buffer water tank 3003.

[0046] The overflow pipe 360 ​​is located above the side wall of the buffer tank 300, such as at the top of the side wall, and is used to drain water from the buffer tank 300 that exceeds its maximum capacity.

[0047] The heat-insulating outer shell 370 is located on the outside of the four side walls of the buffer water tank 300, thereby achieving heat preservation of the water inside the buffer water tank 300.

[0048] The inlet 312 of the buffer water tank 300 is located above the side wall of the tank body 310 and is connected to the outlet 212 of the water tank 200 to receive water from the water tank 200. Specifically, the inlet 312 of the buffer water tank 300 is made as large as possible to ensure that water from the water tank 200 can quickly enter the buffer water tank 300.

[0049] The heater 380 is located below the side wall of the housing 310, such as at the bottom of the side wall of the housing 310. It is used to heat the water in the buffer water tank 300 to prevent the water from freezing due to low temperature and to improve the environmental adaptability of the buffer water tank 300.

[0050] like Figure 7As shown, in some embodiments provided in this application, the water tank 200 includes: a tank body 210, which is configured as a strip structure, with an opening 211 on a first side in the length direction of the tank body 210 and an outlet 212 on a second side in the length direction of the tank body 210; a water tank curtain 220, which is connected to the first side of the tank body 210 and the two sides adjacent to the first side to cover the opening 211, and a ground water supply device 100 is adapted to extend through the water tank curtain 220 into the tank body 210; and a pressure plate 230, which is disposed at the top front of the water tank curtain 220; wherein, the tank body 210 includes at least two sub-tanks 213 connected in sequence, and adjacent sub-tanks 213 are connected by an elastic member 240.

[0051] This embodiment provides the specific structure of the water tank 200. The tank body 210 is the main part of the water tank 200, made of stainless steel plate, hollow inside, with an opening 211 on one side for the water inlet pipe 140 to enter and receive water from the ground water supply device 100. The tank body 210 is designed as a trough-shaped structure, relatively long, which can shorten the water positioning time for the port machinery. Specifically, the first side of the tank body 210 along its length has an opening 211 that extends through the length of the tank body 210, making the opening large enough to facilitate docking with the ground water supply device 100. The second side of the tank body 210 along its length has an outlet 212, which connects to the inlet 312 of the buffer water tank 300. Specifically, the inlet is located at the rear of the water tank 200, and the outlet 212 is made as large as possible to ensure that water from the tank 200 can quickly enter the buffer water tank 300.

[0052] The sink curtain 220 is connected to the first side of the sink body 210 and the two adjacent sides to the first side to cover the opening 211. This allows for the isolation of the sink 200 from external environmental contamination without affecting the water supply pipe 140 of the ground water supply device 100 extending through the sink curtain 220 into the sink body 210. Specifically, the sink curtain 220 may include a main curtain 221 and side curtains 222. The main curtain 221 is located in front of the opening 211, and the side curtains 222 are located on both sides of the opening 211. Furthermore, the sink curtain 220 is designed with vertical openings 211 at regular intervals to reduce resistance to the passage of the water supply pipe 140.

[0053] The pressure plate 230 is located at the top front of the sink curtain 220 to prevent the sink curtain 220 from tearing due to concentrated force at the fixing point. Specifically, the pressure plate 230 may include a main pressure plate located at the top front of the main curtain 221 and a side pressure plate located at the top front of the side curtain 222.

[0054] The main body 210 includes at least two sub-tank bodies 213 connected in sequence. Adjacent sub-tank bodies 213 are connected by an elastic member 240, allowing the tank 200 to withstand small bending and torsion, thus preventing fatigue damage to the main body 210 due to torsion caused by the movement of the port machinery. Specifically, the main body 210 may include two, three, four, or more sub-tank bodies 213.

[0055] Furthermore, the sink curtain 220 and the elastic element 240 can be fixed to the sink body 210 through a detachable structure for easy installation and replacement. The detachable structure can be at least one of the following: bolt structure, plug-in structure, snap-fit ​​structure, tenon and mortise structure, and magnetic structure.

[0056] like Figure 8 and Figure 9 As shown, in some embodiments provided in this application, the ground water supply device 100 includes: a main water pipe 110, a multi-port water pipe 120, a branch water pipe 130, and an upper water pipe 140 extending above the dam foundation 700, all disposed on the dam foundation 700. The main water pipe 110 connects the water supply point 710 and the inlet end of the multi-port water pipe 120. The branch water pipe 130 connects the outlet end of the multi-port water pipe 120 and the first end of the upper water pipe 140. The second end of the upper water pipe 140 extends above the dam foundation 700 and is configured to connect with the water tank 200.

[0057] In this embodiment, the ground water supply device 100 is responsible for distributing water from the water supply point 710 to the water supply pipe 140 aligned with the water tank 200, thereby supplying water to the port machinery's water storage tank 810. Through the cooperation of the main water pipe 110, the multi-way water pipe 120, and the branch water pipe 130, the ground water supply device 100 is configured as a multi-branch system, facilitating the port machinery to access water from the nearest branch and reducing the travel distance for water supply.

[0058] Specifically, the multi-port water pipe 120 can be a tee, cross, or five-way connector, etc.

[0059] Among them, the main water pipe 110, the multi-way water pipe 120, and the branch water pipe 130 are located below the track of the dam foundation 700. Thus, through the special design of the water supply pipeline passing through the track, the water supply pipeline of the ground water supply device 100 is located below the track, which solves the problem of interference between the water supply pipeline and the operating equipment and machinery in the working area, effectively protects the structural safety of the ground water supply device 100, and helps to extend the service life of the automatic water supply device.

[0060] like Figure 8 and Figure 9As shown, in some embodiments provided in this application, the ground water supply device 100 further includes: a main line butterfly valve 150, disposed on the main line water pipe 110, for controlling the on / off state of the main line water pipe 110; a branch line butterfly valve 160, disposed between the branch line water pipe 130 and the multi-way water pipe 120, for controlling the on / off state of the branch line water pipe 130; a branch line solenoid valve 170, disposed on the branch line water pipe 130, for controlling the on / off state of the branch line water pipe 130; and a second insulation component, disposed on the main line water pipe 110, the multi-way water pipe 120, the branch line water pipe 130, and the water supply pipe 140.

[0061] In this embodiment, the main water pipe 110 is connected to the water supply point 710, drawing water from the water supply point 710. A main water pipe butterfly valve 150 is installed on the main water pipe 110, controlling the flow of the main water pipe 110 to facilitate subsequent maintenance of the ground water supply device 100. Adjusting the opening of the main water pipe butterfly valve 150 controls the water flow rate of the ground water supply device 100. A multi-port water pipe 120 is installed at the rear end of the main water pipe 110, dividing the main water supply into multiple branches. A water supply pipe 140 connects to the branch water pipes 130 and extends above the dam foundation 700 for easy connection to the water tank 200. Specifically, the multi-port water pipe 120 can be a four-way water pipe, dividing the main water supply into three branches. The water supply pipe 140 can include water supply pipe A 140a, water supply pipe B 140b, and water supply pipe C 140c. Branch butterfly valves 160 are installed between multi-port water pipes 120 and branch water pipes 130, allowing manual control of the on / off state of each branch, facilitating branch maintenance. Branch solenoid valves 170 are installed on each branch water pipe 130, enabling automatic control of the on / off state of each branch. When the water tank 200 is aligned with a branch of the ground water supply device 100, energizing and opening the corresponding branch solenoid valve 170 will automatically supply water.

[0062] The main water pipe 110, multi-way water pipe 120, branch water pipe 130, and water supply pipe 140 are all covered with a second insulation component. This second insulation component may include electric heat tracing and insulation material, ensuring that the ground water supply device 100 can operate normally in low-temperature environments without freezing, thus improving its environmental adaptability. Furthermore, compared to ground water tank water supply, this setup facilitates heat tracing and insulation, has stronger climate adaptability, and can be used in low-temperature climates.

[0063] like Figure 10 As shown, in some embodiments provided in this application, the automatic water supply device for the port machinery water tank further includes: a water tank bracket 500, wherein the water tank 200 is fixed to the port machinery via the water tank bracket 500.

[0064] Furthermore, the water tank support 500 includes a crossbeam 510 and a bracket 520. Both ends of the crossbeam 510 are connected to two balance beams 820, and the bracket 520 is mounted on the crossbeam 510. The water tank 200 is connected to the bracket 520. This allows the water tank 200 to be reliably and stably fixed to the port machinery. Specifically, the crossbeam 510 can be connected to the bottom of the two balance beams 820 to ensure that the water tank 200 is as close to the ground as possible, reducing the height difference between the water tank 200 and the water supply point, and improving water supply efficiency.

[0065] like Figure 11 As shown, in some embodiments provided in this application, the automatic water supply device for the port machinery water tank further includes: a water tank bracket 600, and the buffer water tank 300 is fixed to the port machinery via the water tank bracket 600.

[0066] Furthermore, the water tank support 600 includes a base 610 and a frame 620. The top of the frame 620 is connected to the balance beam 820, and the bottom of the frame 620 extends below the balance beam 820 and is connected to the base 610. The buffer water tank 300 is connected to the base 610. Thus, the buffer water tank 300 can be reliably and stably fixed to the port machinery and suspended below the balance beam 820 by the water tank support 600.

[0067] An embodiment of this application also provides an automatic water filling method for a port machinery water tank, utilizing the automatic water filling device for the port machinery water tank of any of the foregoing embodiments, such as... Figure 12 As shown, the method includes: Step S1210: Based on the fact that the liquid in the water storage tank and the buffer tank are both at a low water level, according to the detection signal of the ranging sensor, control the port machinery to move along the dam foundation to connect the water supply pipe of the ground water supply device with the water tank. Step S1220: Control the branch solenoid valve on the branch water pipe corresponding to the water supply pipe to open until the liquid in the buffer tank is at a high water level, then control the branch solenoid valve to close. Step S1230: Based on the fact that the liquid level in the buffer tank is higher than the low water level, the pump of the liquid transfer device is started to work until the liquid level in the storage tank is high. Then, the pump stops working, and the branch solenoid valve is opened again until the liquid level in the buffer tank is high. Then, the branch solenoid valve is closed again.

[0068] In this embodiment, when the liquid levels in both the storage tank 810 and the buffer tank 300 are low, it indicates that the storage tank 810 is short of water, and the buffer tank 300 is also short of water. Therefore, water cannot be supplied from the buffer tank 300 to the storage tank 810, and water needs to be supplied from the water supply point 710 on the dam foundation 700. Since the ranging sensor on the ground water supply device 100 is connected to the positioning module of the port machinery, the port machinery is controlled to move along the dam foundation 700 based on the detection signal from the ranging sensor and the positioning module of the port machinery, until the target water supply pipe 140 of the ground water supply device 100 aligns with the water tank 200, thus achieving the positioning and alignment of the target water supply pipe 140 with the water tank 200. The target water supply pipe 140 can be a water supply pipe located relatively low to the port machinery.

[0069] After the target water supply pipe 140 of the ground water supply device 100 is positioned and connected with the water tank 200, the branch solenoid valve 170 of the ground water supply device 100, which is aligned with the target water supply pipe 140 of the water tank 200, is opened. Water from the water supply point 710 enters the buffer water tank 300 through the water tank 200. When the liquid level in the buffer water tank 300 is detected to be high, it indicates that there is a possibility of overflow if water is continued to be supplied to the buffer water tank 300. Therefore, the branch solenoid valve 170 is temporarily closed, waiting for the liquid transfer device 400 to transfer the water in the buffer water tank 300.

[0070] When the liquid level in the buffer tank 300 is higher than the low water level, it indicates that there is liquid in the buffer tank 300 that can be transferred to the storage tank 810. Therefore, the pump 440 in the liquid transfer device 400 operates to transfer water from the buffer tank 300 to the storage tank 810. When the liquid level in the storage tank 810 is detected to be high, it indicates that there is a possibility of overflow if water is continued to be supplied to the storage tank 810. Therefore, the pump 440 in the liquid transfer device 400 is stopped to prevent the storage tank 810 from overflowing due to excessive liquid.

[0071] Simultaneously, during the process of transferring liquid to the storage tank 810, the branch solenoid valve 170 can be controlled to reopen, so as to deliver the liquid from the water supply point 710 to the buffer tank 300, providing sufficient liquid to the buffer tank 300 for transfer to the storage tank 810, until the liquid in the buffer tank 300 reaches a high water level, at which point the branch solenoid valve 170 is controlled to close again to prevent the possibility of liquid overflow from the buffer tank 300. This completes the automatic water filling operation of the storage tank 810.

[0072] Understandably, after the automatic water filling operation of the water storage tank 810 is completed, the liquid in the water storage tank 810 is at a high water level, and the liquid in the buffer water tank 300 is at a high water level. Therefore, if the water storage tank 810 is found to be at a low water level during the normal operation of the port machinery, the water in the buffer water tank 300 can be transferred to the water storage tank 810 using the liquid transfer device 400 to achieve intermittent water replenishment and improve the endurance of the port machinery's dust removal and watering.

[0073] Understandably, during the automatic water filling process, if the buffer tank 300 detects a low water level, the pump 440 of the liquid transfer device 400 can pause its operation and wait for the buffer tank 300 to fill with water. Once the liquid level in the buffer tank 300 is higher than the low water level, the pump 440 can be restarted to transfer liquid to the storage tank 810.

[0074] The automatic water filling method for the water tank 810 of the port machinery provided in this embodiment realizes the automatic water filling operation of the water tank 810, eliminating the safety hazards caused by manual on-site operation. At the same time, the water filling device provided in this embodiment has a faster water filling speed than manual water filling, has less impact on port machinery operation, effectively increases the operating efficiency of port machinery, and has a simple structure, low cost, and helps to reduce maintenance costs. It also has stronger climate adaptability and is suitable for widespread application.

[0075] In some embodiments provided in this application, the automatic water filling method for the port machinery water tank further includes: when the target water supply pipe is not connected to the water tank, based on the fact that the liquid in the water tank is at a low water level and the liquid in the buffer tank is higher than the low water level, controlling the pump to start working until the liquid in the buffer tank is at a low water level or the liquid in the water tank is at a high water level, controlling the pump to stop working.

[0076] In this embodiment, when the target water supply pipe 140 and the water tank 200 are not connected, i.e., when the ground water supply device 100 and the water tank 200 are not connected, if the port machinery is operating normally, during the operation process, if the liquid in the storage tank 810 is at a low level and the liquid in the buffer tank 300 is higher than the low level, it indicates that the storage tank 810 is short of water, while the buffer tank 300 has water to supply to the storage tank 810. At this time, the pump body 440 can be controlled to start working, transferring the liquid in the buffer tank 300 to the storage tank 810 until the liquid in the buffer tank 300 is at a low level or the liquid in the storage tank 810 is at a high level, i.e. until the buffer tank 300 is short of water or the storage tank 810 is full, the pump body 440 can be controlled to stop working. Therefore, during normal operation of the port machinery, the liquid in the buffer water tank 300 can be used to replenish the water in the storage tank 810, allowing the port machinery to replenish water without stopping, thereby improving the port machinery's dust removal and water spraying endurance and improving the port machinery's working efficiency.

[0077] Understandably, when the target water supply pipe 140 is connected to the water tank 200, a relay water replenishment operation can also be performed. For example, when the target water supply pipe 140 is connected to the water tank 200, if the liquid level in the storage tank 810 is low and the liquid level in the buffer tank 300 is higher than the low level, the pump 440 will start working until the liquid level in the buffer tank 300 is low or the liquid level in the storage tank 810 is high, at which point the pump 440 will stop working. This operation can improve water supply efficiency and save water supply time.

[0078] The automatic water filling device and method for the water storage tank 810 of the port machinery provided in this application embodiment have the following advantages compared with the prior art: 1. The innovative application of the suspended buffer water tank 300 effectively overcomes the problem of excessive height difference between the water supply point 710 and the port machinery's water storage tank 810. At the same time, the buffer water tank 300 can serve as an intermediate water replenishment tank for the port machinery's water storage tank 810, thereby improving the port machinery's dust removal and water spraying endurance.

[0079] 2. It can realize automatic water supply for port machinery in all weather conditions, eliminating safety hazards caused by manual operation. Through the use of the extended water tank 200 on the machine and the ground water supply point 710, the water supply can be seamlessly connected in all weather conditions. The port machinery can carry water while walking and working, thus replacing the function of the ground water tank 200.

[0080] 3. Multiple ground water supply devices 100 can be arranged along the water supply points 710 on the dam foundation 700. The precise control of water supply positioning is achieved by using laser sensors in conjunction with the port machinery's GNSS (Global Navigation Satellite System). Combined with the structure of the elongated water tank 200, it overcomes the defects of inaccurate positioning of fixed-point water supply and failure of induction switches. Multiple methods greatly reduce the water supply positioning time and complete environmentally friendly all-weather operation.

[0081] 4. The special design of the water supply pipeline of the ground water supply device 100 passing through the track ensures that the water supply pipeline of the ground water supply device 100 is located below the port machinery track, which solves the problem of interference between the water supply pipeline and the operating equipment and machinery in the working area, and effectively protects the structural safety.

[0082] 5. The main body 210 of the water tank 200 includes at least two sub-tank bodies 213. The elastic element 240 connects the two adjacent sub-tank bodies 213, so that the water tank 200 can withstand small bending and torsion, avoiding fatigue damage caused by the torsion of the water tank 200 structure with the movement of the port machinery, which is conducive to extending the service life of the water supply device.

[0083] In this application, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; the term "multiple" refers to two or more unless otherwise expressly defined. The terms "install," "connect," "link," and "fix" should be interpreted broadly. For example, "connect" can mean a fixed connection, a detachable connection, or an integral connection; "link" can mean a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0084] In the description of this application, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or unit referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0085] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0086] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An automatic water filling device for a port machinery water storage tank, characterized in that, include: A ground water supply device is installed on the dam foundation and connected to a water supply point reserved on the dam foundation. The ground water supply device is equipped with a ranging sensor that is communicatively connected to the positioning module of the port machinery. A water tank is disposed on the port machinery, the port machinery is configured to move according to the detection signal of the ranging sensor so that the water tank docks with the ground water supply device, and the ground water supply device is configured to transport liquid from the water supply point to the water tank; A buffer water tank is disposed on the port machinery, located below the water storage tank, and configured to receive liquid from the water tank; A liquid transfer device is disposed between the buffer tank and the storage tank, and is configured to transfer liquid from the buffer tank to the storage tank.

2. The automatic water filling device for the port machinery water storage tank according to claim 1, characterized in that, The water tank is located between the two balance beams of the port machinery and below the balance beams. The water storage tank is located above the balance beams, and the buffer water tank is suspended below the balance beam corresponding to the water storage tank.

3. The automatic water filling device for the port machinery water storage tank according to claim 1, characterized in that, The liquid transfer device includes: The system includes a transfer pipe, a fluid controller, a filter, and a pump body. The transfer pipe connects the outlet of the buffer tank and the inlet of the storage tank. The fluid controller, the filter, and the pump body are sequentially arranged on the transfer pipe from the outlet of the buffer tank to the inlet of the storage tank. The liquid transfer device further includes a first heat insulation component, which is disposed on the surface of the transfer pipe, the fluid controller, the filter, and the pump body.

4. The automatic water filling device for the port machinery water storage tank according to claim 1, characterized in that, The buffer tank includes: The tank has an outlet, an inlet, a manhole, and a drain. The outlet is located below the side wall of the tank, the inlet is located above the side wall of the tank and connected to the outlet of the water tank, the manhole is located on the top wall of the tank, and the drain is located on the bottom wall of the tank. A cover, which is movably connected to the housing to open and close the maintenance manhole; The first ladder is located inside the housing, below the maintenance manhole; A level gauge is installed in the housing to detect the liquid level inside the housing; The second ladder is located outside the box and is connected to the side wall of the box. An overflow pipe is installed above the side wall of the enclosure; An insulated outer shell is installed around the outside of the side walls of the enclosure; A heater is located below the side wall of the tank and is used to heat the liquid inside the tank. A drain pipe is located outside the housing and connected to the drain outlet, and a drain valve is provided on the drain pipe.

5. The automatic water filling device for the port machinery water storage tank according to claim 1, characterized in that, The water tank includes: The tank body is configured as a strip-shaped structure, with an opening on a first side along the length direction and an outlet on a second side along the length direction. A water trough curtain is connected to the first side of the main body of the trough and the two sides adjacent to the first side to cover the opening, and part of the ground water supply device is adapted to extend through the water trough curtain into the main body of the trough. A pressure plate is disposed at the top front of the water trough curtain; The main body of the groove includes at least two sub-grooves that are connected in sequence, and the adjacent sub-grooves are connected by an elastic element.

6. The automatic water filling device for the port machinery water storage tank according to claim 1, characterized in that, The ground water supply device includes: The main water pipe, multi-way water pipe, branch water pipe, and water supply pipe extending above the dam foundation are installed on the dam foundation. The main water pipe connects the water supply point and the inlet end of the multi-way water pipe. The branch water pipe connects the outlet end of the multi-way water pipe and the first end of the water supply pipe. The second end of the water supply pipe extends above the dam foundation and is configured to connect with the water channel. The main water pipe, the multi-channel water pipe, and the branch water pipe are located below the track of the dam foundation.

7. The automatic water filling device for the port machinery water storage tank according to claim 6, characterized in that, The surface water supply system also includes: A main pipeline butterfly valve is installed on the main pipeline and is used to control the on / off state of the main pipeline. A branch butterfly valve is installed between the branch water pipe and the multi-way water pipe to control the on / off state of the branch water pipe. A branch solenoid valve is installed in the branch water pipe and is used to control the on / off state of the branch water pipe. The second insulation component is disposed on the outside of the main water pipe, the multi-way water pipe, the branch water pipe, and the water supply pipe.

8. The automatic water filling device for the port machinery water storage tank according to claim 2, characterized in that, Also includes: A water tank support, comprising a crossbeam and a bracket, wherein the two ends of the crossbeam are connected to two balance beams, the bracket is mounted on the crossbeam, and the water tank is connected to the bracket; A water tank support includes a base and a frame. The top of the frame is connected to the balance beam, and the bottom of the frame extends below the balance beam and is connected to the base. The buffer water tank is connected to the base.

9. An automatic water filling method for a port machinery water storage tank, characterized in that, The method, utilizing the automatic water filling device of the port machinery water tank as described in any one of claims 8, comprises: Based on the fact that the liquid in the water storage tank and the buffer tank are both at a low water level, according to the detection signal of the ranging sensor, the port machinery is controlled to move along the dam foundation to the target water supply pipe of the ground water supply device and connect with the water tank. The branch solenoid valve on the branch water pipe corresponding to the target water pipe is opened until the liquid in the buffer water tank is at a high water level, and then the branch solenoid valve is closed. Based on the fact that the liquid level in the buffer tank is higher than the low water level, the pump of the liquid transfer device is controlled to start working until the liquid level in the storage tank is high. Then, the pump is controlled to stop working, and the branch solenoid valve is controlled to open again until the liquid level in the buffer tank is high. Then, the branch solenoid valve is controlled to close again.

10. The automatic water filling method for the port machinery water storage tank according to claim 9, characterized in that, The method further includes: If the target water pipe is not connected to the water tank, the pump will start working when the liquid level in the storage tank is low and the liquid level in the buffer tank is higher than the low level, until the liquid level in the buffer tank is low or the liquid level in the storage tank is high, at which point the pump will stop working.

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