A large-span liquid conveying device that can adapt to tidal changes

Abstract

The present invention relates to a large-span liquid conveying device that can adapt to changes in tidal levels, and belongs to the field of liquid conveying technology. The device includes a frame fixed on a vehicle chassis, a folding arm frame installed on the frame, and a pipeline system; the folding arm frame includes a turret fixed on the frame and a plurality of support arms installed on the turret, and adjacent support arms are connected by a rotary joint; one end of the pipeline system is connected to a port valve well through an inlet hose, and the other end is connected to a ship's liquid receiving port through an outlet flexible pipeline. The pipeline system has a liquid adding function of conveying liquid from the port valve well to the ship's liquid receiving port and a liquid unloading function of conveying liquid from the ship's liquid receiving port to the port valve well. The present invention can adjust the position and angle of the pipeline system according to the rise and fall of the tide, so that various liquid goods such as fuel and water can be easily conveyed to the ship.

Description

Technical Field

[0001] The invention relates to a large-span liquid conveying device capable of adapting to tidal level changes, and belongs to the technical field of liquid conveying. Background Art

[0002] With the advancement of science and technology, the large-scale ships have gradually become a trend. At present, there are equipment for transporting various liquid goods such as fuel and water to ships. Most of them use oil transfer arms, also known as marine fluid loading and unloading arms, which are used to complete the loading and unloading tasks of liquid petrochemical products. Such oil transfer arm facilities are fixedly installed on the ground. The oil transfer arms and driving hydraulic stations need to occupy a large port area. Even in the storage state, large oil transfer arms are still as high as 15 to 20 meters, which is inconvenient to use and has poor maneuverability. According to the applicant’s understanding, there are also small oil ports that use manually operated simple oil transfer arms, small vehicle-mounted oil transfer arms or marine hose cranes to connect oil tankers and port pipelines, but simple oil transfer arms and small vehicle-mounted oil transfer arms cannot adapt to the large-span supply method when there are berthing pontoons between large ships and ports. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a movable device which can conveniently adjust the position and liquid outlet angle of the pipeline system according to the rise and fall of tides, so as to conveniently transport various liquid goods such as fuel oil and water to ships.

[0004] In order to solve the above technical problems, the technical solution proposed in the present invention is: a large-span liquid conveying device that can adapt to changes in tidal levels, comprising a frame fixed on a car chassis, a folding arm frame installed on the frame, and a pipeline system; the folding arm frame comprises a turret fixed on the frame and a plurality of support arms installed on the turret, and adjacent support arms are connected by a rotating joint, and the pipelines in the pipeline system are installed in the turret and the support arms and extend along the length direction of the support arms; one end of the pipeline system is connected to the port valve well through an inlet hose, and the other end is connected to the ship's liquid receiving port through an outlet flexible pipeline, and the pipeline system has a liquid adding function of conveying liquid from the port valve well to the ship's liquid receiving port and a liquid unloading function of conveying liquid from the ship's liquid receiving port to the port valve well.

[0005] The folding boom and the rotary joint in the present invention are both prior arts. The folding boom and its control can refer to the Chinese patent "A concrete pump truck and its boom device" with publication number CN101793092A, and the rotary joint can refer to the Chinese patent "A built-in oil-through rotating device between articulated booms" with publication number CN102537557A.

[0006] The folding arm described in the present invention has a folded state and an unfolded state. When the vehicle is in operation, the arm is in an unfolded state; when the vehicle is not in operation, the arm is in a folded state. The present invention can make the pipeline and the folding arm move synchronously through the combination of the folding arm and the rotary joint, thereby bringing convenience to the transfer and transportation of oil using the vehicle-mounted arm. When working, the present invention can automatically adjust the shape of the folding arm itself according to the change of the position of the delivery point to adapt to the change of the tide level, so as to realize the liquid transportation to large ships at high places and below the ground position where the device is located. During non-operating time, the support arm can be folded and the device can be moved to another place, which does not occupy the port space and is flexible and maneuverable. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] The present invention will be further described below in conjunction with the accompanying drawings.

[0008] Figure 1 It is a schematic diagram of an embodiment of the present invention in an unfolded state when performing operations at a height.

[0009] Figure 2 It is a schematic diagram of the embodiment of the present invention in the unfolded state when operating at a low place.

[0010] Figure 3 Schematic diagram of a pipeline system in an embodiment of the present invention.

[0011] In the figure: 100, automobile chassis; 200, frame; 300, piping system; 400, control system; 500, folding arm; 201, supporting device; 301, first valve; 302, second valve; 303, third valve; 304, fourth valve; 305, fifth valve; 306, sixth valve; 307, seventh valve; 308, eighth valve; 309, ninth valve; 310, liquid inlet pump; 311, two-way pump; 312, filter; 313, flow meter; 314, liquid storage tank; 315, pressure reducing valve; 316, pressure measuring device; 317, inlet hose; 501, turret; 502, supporting arm; 503, outlet flexible pipeline; 504, sensor; 505, rotary joint; 600, port valve well; 700, ship liquid receiving port. DETAILED DESCRIPTION

[0012] Embodiment 1

[0013] In this embodiment, Figure 1 and Figure 2As shown, it includes a frame 200 fixed on the automobile chassis 100, a folding arm frame 500 installed on the frame 200, and a pipeline system 300; the folding arm frame 500 includes a turret 501 fixed on the frame 200 and a plurality of support arms 502 installed on the turret 501, and adjacent support arms 502 are connected by a rotary joint 505, and the pipelines in the pipeline system 300 are installed in the turret 501 and the support arms 502 and extend along the length direction of the support arms 502; one end of the pipeline system 300 is connected to the port valve well 600 through an inlet hose 317, and the other end is connected to the ship liquid receiving port 700 through an outlet flexible pipeline 503, and the pipeline system 300 has a liquid adding function of conveying liquid from the port valve well 600 to the ship liquid receiving port 700 and a liquid unloading function of conveying liquid from the ship liquid receiving port 700 to the port valve well 600.

[0014] Preferably, a supporting device 201 having two states, namely, extended and retracted, is installed on the vehicle frame 200 , and the pipeline system 300 is installed on the vehicle frame 200 .

[0015] like Figure 3 As shown, preferably, the pipeline system 300 in this embodiment includes a first valve 301, a second valve 302, a third valve 303, a fourth valve 304, a fifth valve 305, a sixth valve 306, a seventh valve 307, a liquid inlet pump 310 and a liquid storage tank 314, and the initial states of the first valve 301, the second valve 302, the third valve 303, the fourth valve 304, the fifth valve 305, the sixth valve 306, and the seventh valve 307 are all closed.

[0016] The liquid inlet pump 310, the first valve 301, the second valve 302 are connected in series with the outlet flexible pipeline 503. The liquid inlet pump 310 is turned on and the first valve 301 and the second valve 302 are opened to form a liquid adding pipeline, that is, the first valve 301, the second valve 302 and the liquid inlet pump 310 are opened to realize the liquid adding function of the port valve well 600 to the ship's liquid receiving port 700.

[0017] The third valve 303 is connected in parallel with the first valve 301, and the fifth valve 305 and the sixth valve 306 are connected in series and connected in parallel with the connecting pipeline of the liquid inlet pump 310 and the first valve 301. The third valve 303, the fifth valve 305, and the sixth valve 306 are opened to form a liquid unloading pipeline, that is, the third valve 303, the fifth valve 305, and the sixth valve 306 are opened to perform the liquid collection function of the port valve well 600.

[0018] The fourth valve 304 is connected in series to the connecting pipeline between the liquid outlet of the liquid inlet pump 310 and the third valve 303 and the fifth valve 305, and the seventh valve 307 is connected in series to the connecting pipeline between the liquid storage tank 314 and the fifth valve 305 and the sixth valve 306. The first valve 301, the second valve 302, the third valve 303, the fourth valve 304, the fifth valve 305 and the seventh valve 307 are opened to form a gravity drain pipeline for the surplus liquid of the pipeline system 300 to flow into the liquid storage tank 314 by gravity.

[0019] A pressure reducing valve 315 and a pressure measuring device 316 are provided between the liquid inlet pump 310 and the first valve 301 , and a filter 312 and a flow meter 313 are provided on the liquid unloading pipeline and the liquid adding pipeline.

[0020] When adding liquid, the liquid can be pumped to the ship through the liquid inlet pump 310 or the pump on the port valve well, and the liquid is filtered through the filter 312 and measured by the flow meter 313. When unloading liquid, the liquid is transported to the port valve well through the pump on the ship, and similarly, the liquid is filtered through the filter 312 and measured by the flow meter 313. In order to prevent the pressure entering the pipeline system 300 from being too high and causing damage to the pipeline and the ship's liquid system, the value of the pressure reducing valve 315 can be adjusted to control the maximum pressure of the pipeline system 300, and the pressure measuring device 316 can be used to monitor the pressure of the pipeline system 300.

[0021] As mentioned above, the folding arm 500 and the rotary joint 505 are both prior art and will not be described in detail. In this way, the operation of the pipeline system 300, the extension and retraction of the support device 201, and the extension and retraction of the folding arm 500 can be controlled by the control system 400. The control system 400 can be hydraulically controlled, electrically controlled, or a combination of the two. The support arm 502 can be a three-section folding arm, a two-section folding arm, or a folding arm 500 with more than three sections. The folding arm 500 can be installed at the rear of the frame 200, or at the front and middle of the frame 200.

[0022] This embodiment can also be improved as follows: 1) A sensor 504 is installed on the folding arm 500 for real-time monitoring of the length of the outlet flexible pipeline 503 and the angle of the turret 501, and the length of the outlet flexible pipeline 503 and the angle of the turret 501 are fed back to the control system 400. When the length of the outlet flexible pipeline 503 exceeds the set range, the control system 400 automatically adjusts the expansion or retraction of the folding arm 500 according to the preset algorithm; when the angle of the turret 501 exceeds the set range, the control system 400 automatically adjusts the rotation angle of the turret 501 according to the preset algorithm. If it is not possible to adjust to the ideal working condition, an alarm can be issued to remind the operator to manually intervene and adjust. Through the above improvements, the operator controls its multi-stage position compensation device to accurately realize the large-span liquid transportation from the port valve well to the large ship, and can automatically adjust its own shape according to the change of the position of the delivery point to adapt to the change of the tide level.

[0023] 2) The pipeline system 300 further includes an eighth valve 308 and a bidirectional pump 311 , and the initial state of the eighth valve 308 is a closed state.

[0024] The two-way pump 311 is connected in parallel with the seventh valve 307, the second valve 302, the third valve 303, the fourth valve 304, the fifth valve 305, and the sixth valve 306 are opened and the two-way pump 311 rotates forward, forming a pipeline for pumping the remaining liquid in the pipeline system 300 back into the liquid storage tank 314, that is, the second valve 302, the third valve 303, the fourth valve 304, the fifth valve 305, and the sixth valve 306 are opened and the two-way pump 311 rotates forward to perform the pipeline pumping and emptying function of pumping the remaining liquid in the pipeline system 300 back into the liquid storage tank 314.

[0025] The eighth valve 308 is arranged on a pipeline on one side of the two-way pump 311 away from the liquid storage tank 314. When the eighth valve 308 is opened and the two-way pump 311 is reversed, a liquid storage tank evacuation pipeline is formed to discharge the liquid in the liquid storage tank 314 to an external container; the second valve 302 and the fifth valve 305 are opened and the two-way pump 311 is reversed, forming a liquid storage tank injection supply pipeline to replenish the remaining liquid in the liquid storage tank 314 to the pipeline system 300, that is, the eighth valve 308 is opened and the two-way pump 311 is reversed to discharge the liquid in the liquid storage tank 314 to an external container to perform the evacuation function of the liquid storage tank, and the second valve 302, the fifth valve 305 and the two-way pump 311 are opened and the two-way pump 311 is reversed to replenish the remaining liquid in the liquid storage tank 314 to the pipeline system 300 to realize the function of the liquid storage tank injection supply pipeline system.

[0026] 3) The liquid storage tank 314 is provided with a ninth valve 309 connected to the external container. The initial state of the ninth valve 309 is closed, that is, the ninth valve 309 is opened to perform the function of self-flowing emptying of the liquid storage tank to the external container.

[0027] 4) The heat storage tank is provided with a heating device. When the external temperature is very low, the heating device in the liquid storage tank 314 can be turned on to heat the liquid to prevent solidification or freezing.

[0028] The present invention is not limited to the specific technical solutions described in the above embodiments. In addition to the above embodiments, the present invention may also have other implementation modes. For those skilled in the art, any technical solutions formed by any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A large-span liquid conveying device that can adapt to tidal changes, characterized in that: It includes a frame fixed on the chassis of the vehicle, a folding arm frame installed on the frame and a pipeline system; The folding arm frame includes a turret fixed on the frame and a plurality of support arms mounted on the turret, adjacent support arms are connected by a rotary joint, and the pipelines in the pipeline system are installed in the turret and the support arms and extend along the length direction of the support arms; One end of the pipeline system is connected to the port valve well through an inlet hose, and the other end is connected to the ship's liquid receiving port through an outlet flexible pipeline. The pipeline system has a liquid adding function of conveying liquid from the port valve well to the ship's liquid receiving port and a liquid unloading function of conveying liquid from the ship's liquid receiving port to the port valve well; The pipeline system includes a first valve, a second valve, a third valve, a fourth valve, a fifth valve, a sixth valve, a seventh valve, a liquid inlet pump and a liquid storage tank, and the initial states of the first valve, the second valve, the third valve, the fourth valve, the fifth valve, the sixth valve and the seventh valve are all closed; The liquid inlet pump, the first valve, the second valve and the outlet flexible pipeline are connected in series, and the liquid inlet pump is turned on and the first valve and the second valve are opened to form a liquid adding pipeline; The third valve is connected in parallel with the first valve, the fifth valve and the sixth valve are connected in series and connected in parallel with the connecting pipeline of the liquid inlet pump and the first valve, and the third valve, the fifth valve and the sixth valve are opened to form a liquid unloading pipeline; The fourth valve is connected in series to the connecting pipeline between the liquid outlet of the liquid inlet pump and the third valve and the fifth valve, the seventh valve is connected in series to the connecting pipeline between the liquid storage tank and the fifth valve and the sixth valve, and the first valve, the second valve, the third valve, the fourth valve, the fifth valve and the seventh valve are opened to form a gravity drain pipeline for the residual liquid in the pipeline system to flow into the liquid storage tank by gravity; The folding arm is equipped with a sensor for real-time monitoring of the length of the outlet flexible pipeline and the angle of the turret.

2. The large-span liquid conveying device capable of adapting to tidal level changes according to claim 1 is characterized in that: A supporting device with two states, namely, extended and retracted, is installed on the vehicle frame, and the pipeline system is installed on the vehicle frame.

3. The large-span liquid conveying device capable of adapting to tidal level changes according to claim 1 or 2, characterized in that: The pipeline system further comprises an eighth valve and a bidirectional pump, wherein the initial state of the eighth valve is a closed state; The bidirectional pump is connected in parallel with the seventh valve, the second valve, the third valve, the fourth valve, the fifth valve and the sixth valve are opened and the bidirectional pump rotates forward, forming a return and emptying pipeline for drawing the remaining liquid in the pipeline system back into the liquid storage tank; The eighth valve is arranged on the pipeline on the side of the two-way pump away from the liquid storage tank. When the eighth valve is opened and the two-way pump is reversed, a liquid storage tank evacuation pipeline is formed to discharge the liquid in the liquid storage tank to the external container; when the second valve and the fifth valve are opened and the two-way pump is reversed, a liquid storage tank injection supply pipeline is formed to supply the remaining liquid in the liquid storage tank to the pipeline system.

4. The large-span liquid conveying device capable of adapting to tidal level changes according to claim 3 is characterized in that: The liquid storage tank is provided with a ninth valve connected to the external container, and the ninth valve is initially closed.

5. The large-span liquid conveying device capable of adapting to tidal level changes according to claim 1 is characterized in that: A pressure reducing valve and a pressure measuring device are arranged between the liquid inlet pump and the first valve, and filters and flow meters are arranged on the liquid unloading pipeline and the liquid adding pipeline.

6. The large-span liquid conveying device capable of adapting to tidal level changes according to claim 1 is characterized in that: A heating device is arranged in the liquid storage tank.

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