Embarkation gangway energy compensation control system

Abstract

The present application relates to the technical field of ship and marine structure, and discloses a kind of boarding gangway energy compensation control system, boarding gangway includes pedestal, bridge and the gangway oil cylinder for driving bridge rotation, the system includes: hydraulic pump station, first reversing valve, energy storage component, second reversing valve, third reversing valve, the piston rod side and the piston rod side of oil cylinder are connected with hydraulic pump station and energy storage component respectively, hydraulic pump station controls hydraulic flow direction by first reversing valve, realizes the lifting and lowering of bridge, energy storage component stores gravitational potential energy when bridge is lowered by second reversing valve and third reversing valve, and releases high-pressure oil when bridge is lifted to carry out energy compensation, to reduce the output demand of hydraulic pump station, can reduce the consumption of electric energy, improve energy utilization efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of marine technology, in particular to an energy compensation control system for a boarding bridge. BACKGROUND

[0002] The wave-compensated boarding bridge is used for personnel boarding operation between a ship and an offshore platform, and can compensate for the heave, roll and pitch movements of the ship by controlling the movements of the hydraulic cylinders installed in different directions of the boarding bridge, thereby keeping the boarding bridge stable and fixed between the ship and the offshore platform, and making the personnel transfer more safe and convenient.

[0003] The equipment arrangement space and the available electric energy of the ship are limited, and the volume, weight and power of the wave-compensated boarding bridge are main factors affecting its application on the ship. If the bridge of the boarding bridge is lifted and lowered only by driving the oil cylinder with electric energy, the energy consumption is great, the requirement for the energy storage device of the ship is high, and it is difficult to maintain the compensation for the heave of the ship for a long time. SUMMARY

[0004] The present application aims to provide an energy compensation control system for a boarding bridge, which can store energy by using the gravitational potential energy of the bridge to press oil into an energy storage assembly during the movement of lowering the bridge, and can assist in lifting the bridge by using the high-pressure oil in the energy storage assembly when the bridge is lifted, thereby reducing the consumption of electric energy and the energy output requirement of the hydraulic pump station.

[0005] In order to achieve the above-mentioned purpose, the present application provides an energy compensation control system for a boarding bridge, which comprises a base, a bridge and a bridge cylinder, one end of the bridge is hinged to the base, the bridge cylinder is hinged to the base, the power output end of the bridge cylinder is hinged to the bridge, the bridge cylinder is located below the bridge, the bridge cylinder is used to drive the bridge to rotate, the bridge cylinder has a first oil port and a second oil port, the first oil port is located on the side without a piston rod, and the second oil port is located on the side with a piston rod, and comprises:

[0006] A hydraulic pump station, which has an oil outlet and an oil inlet;

[0007] A first reversing valve has a first valve port, a second valve port, a third valve port and a fourth valve port, the first reversing valve has a first state, a second state and a third state, when the first reversing valve is in the first state, the first valve port communicates with the fourth valve port, the second valve port communicates with the third valve port; when the first reversing valve is in the second state, the third valve port communicates with the fourth valve port, the first valve port does not communicate with the second valve port; when the first reversing valve is in the third state, the first valve port communicates with the third valve port, the second valve port communicates with the fourth valve port; the oil outlet port communicates with the third valve port, the oil inlet port communicates with the fourth valve port, the first valve port communicates with the first oil port, the second valve port communicates with the second oil port;

[0008] An energy storage assembly has an input port and an output port, the input port communicates with the fourth valve port, and the output port communicates with the third valve port;

[0009] A second reversing valve is arranged between the input port and the fourth valve port, the second reversing valve has a communication state and a disconnection state;

[0010] A third reversing valve is consistent with the second reversing valve, and the third reversing valve is arranged between the output port and the third valve port.

[0011] Further, the boarding bridge energy compensation control system further comprises a pressure stabilizing valve group, the pressure stabilizing valve group comprises a pressure stabilizing reversing valve, the pressure stabilizing reversing valve has a fifth valve port, a sixth valve port, a seventh valve port and an eighth valve port, the pressure stabilizing reversing valve has a fourth state, a fifth state and a sixth state;

[0012] When the pressure stabilizing reversing valve is in the fourth state, the fifth valve port communicates with the seventh valve port, the sixth valve port communicates with the eighth valve port, a first check valve is arranged between the fifth valve port and the seventh valve port, the flow direction of the first check valve is from the seventh valve port to the fifth valve port, and a throttle valve is arranged between the sixth valve port and the eighth valve port;

[0013] When the pressure stabilizing reversing valve is in the fifth state, the fifth valve port communicates with the seventh valve port, the sixth valve port communicates with the eighth valve port, a second check valve is arranged between the fifth valve port and the seventh valve port, the flow direction of the second check valve is from the seventh valve port to the fifth valve port, a third check valve is arranged between the sixth valve port and the eighth valve port, and the flow direction of the third check valve is from the eighth valve port to the sixth valve port;

[0014] When the constant pressure reversing valve is in the sixth state, the fifth valve port is in communication with the seventh valve port, the sixth valve port is in communication with the eighth valve port, a throttle valve is arranged between the fifth valve port and the seventh valve port, a fourth check valve is arranged between the sixth valve port and the eighth valve port, and the flow direction of the fourth check valve is from the eighth valve port to the sixth valve port;

[0015] The seventh valve port is in communication with the first valve port, the eighth valve port is in communication with the second valve port, the fifth valve port is in communication with the first oil port, and the sixth valve port is in communication with the second oil port.

[0016] Further, a first pipeline is arranged between the fifth valve port and the first oil port, a second pipeline is arranged between the sixth valve port and the second oil port, and a first overflow valve and a second overflow valve are arranged in parallel between the first pipeline and the second pipeline, and the flow directions of the first overflow valve and the second overflow valve are opposite.

[0017] Further, the energy storage assembly comprises an energy storage unit, the energy storage unit has an energy storage port, the energy storage port is in communication with the second reversing valve, a fifth check valve is arranged between the energy storage port and the second reversing valve, the flow direction of the fifth check valve is from the second reversing valve to the energy storage port, the energy storage port is in communication with the third reversing valve, a sixth check valve is arranged between the energy storage port and the third reversing valve, and the flow direction of the sixth check valve is from the energy storage port to the third reversing valve.

[0018] Further, a first pressure gauge is connected to the first pipeline, a second pressure gauge is connected to the second pipeline, and a third pressure gauge is connected to the energy storage port.

[0019] Further, the boarding bridge energy compensation control system further comprises a fourth reversing valve and a control assembly, a first pressure sensor is connected to the first pipeline, a second pressure sensor is connected to the second pipeline, a third pressure sensor is connected to the energy storage port, the fourth reversing valve is identical in structure to the second reversing valve, a third pipeline is arranged in communication between the fourth valve port and the oil inlet port, the fourth reversing valve is arranged on the third pipeline and is located on the downstream side of the oil inlet end of the second reversing valve, and the control assembly is electrically connected with the first reversing valve, the second reversing valve, the third reversing valve, the first pressure sensor, the second pressure sensor, and the third pressure sensor.

[0020] Further, the value of the first pressure gauge is denoted as P1, the value of the second pressure gauge is denoted as P2, and the value of the third pressure gauge is denoted as P3,

[0021] The control assembly is configured to:

[0022] When the bridge needs to be lifted, the first reversing valve switches to the third state, the second reversing valve switches to the disconnected state, the third reversing valve switches to the connected state, and the fourth reversing valve switches to the connected state, and when P3

[0023] When the bridge needs to be lowered, the first reversing valve switches to the first state, the second reversing valve switches to the connected state, the third reversing valve switches to the disconnected state, and the fourth reversing valve switches to the disconnected state, and when P3>P1, the second reversing valve switches to the disconnected state, and the fourth reversing valve switches to the connected state.

[0024] Further, the hydraulic pump station comprises an oil tank and a pressure boosting driving member, the oil tank is communicated with the oil outlet, and the pressure boosting driving member is arranged between the oil tank and the oil outlet.

[0025] Compared with the prior art, the energy compensation control system for the embarkation bridge has the following beneficial effects: when the bridge needs to be lifted, the first reversing valve switches to the third state, the second reversing valve switches to the disconnected state, the third reversing valve switches to the connected state, the oil in the hydraulic pump station flows from the oil outlet, sequentially passes through the third valve port, the fourth valve port and the first oil port, and then enters the piston rod free side of the bridge cylinder, the oil in the piston rod side of the bridge cylinder flows from the second oil port, sequentially passes through the second valve port, the fourth valve port and the oil inlet, and then returns to the hydraulic pump station, the oil in the energy storage assembly flows from the output port, passes through the third reversing valve, and then converges with the oil flowing from the oil outlet, and then flows to the piston rod free side of the bridge cylinder together, so as to push the bridge cylinder to lift the bridge; when the bridge needs to be lowered, the first reversing valve switches to the first state, the second reversing valve switches to the connected state, the third reversing valve switches to the disconnected state, the oil in the hydraulic pump station flows from the oil outlet, sequentially passes through the third valve port, the second valve port and the second oil port, and then enters the piston rod side of the bridge cylinder, part of the oil in the piston rod free side of the bridge cylinder sequentially passes through the first valve port, the fourth valve port and the oil inlet, and then returns to the hydraulic pump station, and the rest of the oil sequentially passes through the first valve port, the fourth valve port, the second reversing valve and the input port, and then enters the energy storage assembly to be stored, so as to assist in lifting the bridge next time. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 is a pipeline schematic diagram of the energy compensation control system for the embarkation bridge according to the embodiment of the present application;

[0027] Figure 2 is a structural schematic diagram of the embarkation bridge when the embarkation bridge is lifted according to the embodiment of the present application;

[0028] Figure 3is a structure schematic view of the embarkation gangway energy compensation control system of the embodiment of the present application when the embarkation gangway is lowered;

[0029] Figure 4 is a schematic view of the first reversing valve of the embarkation gangway energy compensation control system of the embodiment of the present application;

[0030] Figure 5 is a schematic view of the pressure stabilizing valve group of the embarkation gangway energy compensation control system of the embodiment of the present application;

[0031] Figure 6 is a schematic view of the energy storage assembly of the embarkation gangway energy compensation control system of the embodiment of the present application;

[0032] Figure 7 is a schematic view of the hydraulic pump station of the embarkation gangway energy compensation control system of the embodiment of the present application;

[0033] In the figure, 1, embarkation gangway; 101, base; 102, bridge; 103, gangway oil cylinder; 1031, first oil port; 1032, second oil port;

[0034] 2, hydraulic pump station; 201, oil outlet; 202, oil inlet; 203, oil tank; 204, pressure boosting driving member;

[0035] 3, first reversing valve; 301, first valve port; 302, second valve port; 303, third valve port; 304, fourth valve port;

[0036] 4, energy storage assembly; 401, input port; 402, output port; 403, energy storage unit; 4031, energy storage port; 404, fifth one-way valve; 405, sixth one-way valve;

[0037] 5, second reversing valve;

[0038] 6, third reversing valve;

[0039] 7, pressure stabilizing valve group; 701, pressure stabilizing reversing valve; 7011, fifth valve port; 7012, sixth valve port; 7013, seventh valve port; 7014, eighth valve port; 7015, first one-way valve; 7016, second one-way valve; 7017, third one-way valve; 7018, fourth one-way valve; 7019, throttling valve;

[0040] 8, first pipeline;

[0041] 9, second pipeline;

[0042] 10, first overflow valve;

[0043] 11, second overflow valve;

[0044] 12, first pressure gauge;

[0045] 13. second pressure gauge;

[0046] 14. third pressure gauge;

[0047] 15. fourth directional control valve;

[0048] 16. third pipeline

[0049] 17. control assembly;

[0050] 18. first pressure sensor;

[0051] 19. second pressure sensor;

[0052] 20. third pressure sensor. DETAILED DESCRIPTION

[0053] The specific embodiments of the present application will be further described in conjunction with the drawings and examples. The following examples are used to illustrate the present application, but are not intended to limit the scope of the present application.

[0054] In the description of the present application, the terms "upper", "lower", "left", "right", "front", "back", "inner", "outer", "lateral", "longitudinal" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only used for the convenience of describing the present application and simplifying the description, and are not intended to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application. For those of ordinary skill in the art, the specific meanings of these terms in the present application can be understood according to the specific circumstances.

[0055] In the description of the present application, the terms "provided with", "provided", "connected", "placed" should be understood broadly, for example, it can be fixedly connected, detachably connected, or integrally constructed; it can be mechanically connected, or electrically connected; it can be directly connected, or indirectly connected through an intermediate medium, or it can be internal communication between two devices, elements or components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0056] In addition, the terms "first", "second" and the like are mainly used to distinguish different devices, elements or components (the specific types and structures may be the same or different), and are not intended to indicate or imply the relative importance and quantity of the indicated devices, elements or components. Unless otherwise stated, the meaning of "a plurality of" is two or more.

[0057] The technical solutions of the present application will be further described below in conjunction with the examples and drawings.

[0058] AsFigure 1 、 2 , 3, 4, the boarding bridge energy compensation control system of the embodiment of the application, the boarding bridge 1 includes a base 101, a bridge 102 and a bridge cylinder 103, one end of the bridge 102 is hinged to the base 101, the bridge cylinder 103 is hinged to the base 101, the power output end of the bridge cylinder 103 is hinged to the bridge 102, the bridge cylinder 103 is located below the bridge 102, the bridge cylinder 103 is used to drive the bridge 102 to rotate, the bridge cylinder 103 has a first oil port 1031 and a second oil port 1032, the first oil port 1031 is located on the side without a piston rod, the second oil port 1032 is located on the side of the piston rod, comprising:

[0059] The hydraulic pump station 2 has an oil outlet 201 and an oil inlet 202;

[0060] The first reversing valve 3 has a first valve port 301, a second valve port 302, a third valve port 303 and a fourth valve port 304, the first reversing valve 3 has a first state, a second state and a third state, when the first reversing valve 3 is in the first state, the first valve port 301 and the fourth valve port 304 are communicated, the second valve port 302 and the third valve port 303 are communicated; when the first reversing valve 3 is in the second state, the third valve port 303 and the fourth valve port 304 are communicated, the first valve port 301 and the second valve port 302 are not communicated; when the first reversing valve 3 is in the third state, the first valve port 301 and the third valve port 303 are communicated, the second valve port 302 and the fourth valve port 304 are communicated; the oil outlet 201 is communicated with the third valve port 303, the oil inlet 202 is communicated with the fourth valve port 304, the first valve port 301 is communicated with the first oil port 1031, and the second valve port 302 is communicated with the second oil port 1032;

[0061] The energy storage assembly 4 has an input port 401 and an output port 402, the input port 401 is communicated with the fourth valve port 304, and the output port 402 is communicated with the third valve port 303;

[0062] The second reversing valve 5 is arranged between the input port 401 and the fourth valve port 304, and the second reversing valve 5 has a communication state and a disconnection state;

[0063] The third reversing valve 6 is consistent with the structure of the second reversing valve 5, and the third reversing valve 6 is arranged between the output port 402 and the third valve port 303.

[0064] Based on the above technical scheme, when the bridge 102 needs to be lifted, the first reversing valve 3 is switched to the third state, the second reversing valve 5 is switched to the disconnected state, the third reversing valve 6 is switched to the connected state, the oil liquid of the hydraulic pump station 2 flows from the oil outlet 201 to the non-piston rod side of the trestle oil cylinder 103 through the third valve port 303, the fourth valve port 304 and the first oil port 1031 in sequence, the oil liquid of the piston rod side of the trestle oil cylinder 103 flows from the second oil port 1032 to the hydraulic pump station 2 through the second valve port 302, the fourth valve port 304 and the oil inlet 202 in sequence, the oil liquid of the energy storage assembly 4 flows from the output port 402 through the third reversing valve 6 and then converges with the oil liquid flowing out from the oil outlet 201, and the converged oil liquid flows to the non-piston rod side of the trestle oil cylinder 103 to push the trestle oil cylinder 103 to lift the bridge 102; when the bridge 102 needs to be lowered, the first reversing valve 3 is switched to the first state, the second reversing valve 5 is switched to the connected state, and the third reversing valve 6 is switched to the disconnected state, the oil liquid of the hydraulic pump station 2 flows from the oil outlet 201 to the piston rod side of the trestle oil cylinder 103 through the third valve port 303, the second valve port 302 and the second oil port 1032 in sequence, part of the oil liquid in the non-piston rod side of the trestle oil cylinder 103 flows to the hydraulic pump station 2 through the first valve port 301, the fourth valve port 304 and the oil inlet 202 in sequence, and the remaining oil liquid flows from the non-piston rod side of the trestle oil cylinder 103 to the energy storage assembly 4 through the first valve port 301, the fourth valve port 304, the second reversing valve 5 and the input port 401 in sequence to be stored, so as to assist in lifting the bridge 102 next time.

[0065] Preferably, as shown in the drawings, the boarding trestle energy compensation control system further comprises a pressure stabilizing valve group 7, and the pressure stabilizing valve group 7 comprises a pressure stabilizing reversing valve 701, the pressure stabilizing reversing valve 701 has a fifth valve port 7011, a sixth valve port 7012, a seventh valve port 7013 and an eighth valve port 7014, and the pressure stabilizing reversing valve 701 has a fourth state, a fifth state and a sixth state. Figure 5

[0066] When the pressure stabilizing reversing valve 701 is in the fourth state, the fifth valve port 7011 is connected with the seventh valve port 7013, the sixth valve port 7012 is connected with the eighth valve port 7014, a first one-way valve 7015 is arranged between the fifth valve port 7011 and the seventh valve port 7013, the flow direction of the first one-way valve 7015 is from the seventh valve port 7013 to the fifth valve port 7011, and a throttle valve 7019 is arranged between the sixth valve port 7012 and the eighth valve port 7014.

[0067] ​When the pressure stabilizing reversing valve 701 is in the fifth state, the fifth valve port 7011 communicates with the seventh valve port 7013, the sixth valve port 7012 communicates with the eighth valve port 7014, a second one-way valve 7016 is arranged between the fifth valve port 7011 and the seventh valve port 7013, the flow direction of the second one-way valve 7016 is from the seventh valve port 7013 to the fifth valve port 7011, a third one-way valve 7017 is arranged between the sixth valve port 7012 and the eighth valve port 7014, the flow direction of the third one-way valve 7017 is from the eighth valve port 7014 to the sixth valve port 7012;

[0068] When the pressure stabilizing reversing valve 701 is in the sixth state, the fifth valve port 7011 communicates with the seventh valve port 7013, the sixth valve port 7012 communicates with the eighth valve port 7014, a throttle valve 7019 is arranged between the fifth valve port 7011 and the seventh valve port 7013, a fourth one-way valve 7018 is arranged between the sixth valve port 7012 and the eighth valve port 7014, the flow direction of the fourth one-way valve 7018 is from the eighth valve port 7014 to the sixth valve port 7012;

[0069] The seventh valve port 7013 communicates with the first valve port 301, the eighth valve port 7014 communicates with the second valve port 302, the fifth valve port 7011 communicates with the first oil port 1031, and the sixth valve port 7012 communicates with the second oil port 1032.

[0070] Based on the above technical scheme, when the bridge 102 needs to be lifted, the pressure stabilizing reversing valve 701 is switched to the fifth state, the oil entering the stack oil cylinder 103 from the non-piston rod side flows from the seventh valve port 7013 to the fifth valve port 7011 through the first one-way valve 7015, and the oil flowing out of the stack oil cylinder 103 from the piston rod side flows from the sixth valve port 7012 to the eighth valve port 7014 through the throttle valve 7019; when the bridge 102 needs to be stationary relative to the base 101, the pressure stabilizing reversing valve 701 is switched to the sixth state, the second one-way valve 7016 and the third one-way valve 7017 prevent the oil in the stack oil cylinder 103 from flowing out of the pressure stabilizing reversing valve 701; when the bridge 102 needs to be lowered, the oil entering the stack oil cylinder 103 from the piston rod side flows from the eighth valve port 7014 to the sixth valve port 7012 through the fourth one-way valve 7018, and the oil flowing out of the stack oil cylinder 103 from the non-piston rod side flows from the fifth valve port 7011 to the seventh valve port 7013 through the throttle valve 7019. The first one-way valve 7015, the second one-way valve 7016, the third one-way valve 7017, and the fourth one-way valve 7018 are used to prevent the oil from flowing in the opposite direction, the throttle valve 7019 is arranged to control the flow of oil, and the speed of lifting and lowering the bridge 102 is slowed down, so that the compensation for the ship's heaving, rolling, and pitching motion is more stable, so as to prevent the bridge 102 from moving too fast, reduce the probability of damage to the bridge 102, and ensure the safety of personnel and material transfer at sea.

[0071] More preferably, as shown in FIG. 6, the fifth valve port 7011 is communicated with the first oil port 1031 by a first pipeline 8, the sixth valve port 7012 is communicated with the second oil port 1032 by a second pipeline 9, the first pipeline 8 and the second pipeline 9 are connected in parallel by a first overflow valve 10 and a second overflow valve 11, and the flow directions of the first overflow valve 10 and the second overflow valve 11 are opposite. The first overflow valve 10 and the second overflow valve 11 can prevent the pressure difference between the first pipeline 8 and the second pipeline 9 from being too large, so that the piston of the gangway oil cylinder 103 moves too fast and is easily damaged.

[0072] More preferably, as shown in FIG. 6, the fifth valve port 7011 is communicated with the first oil port 1031 by a first pipeline 8, the sixth valve port 7012 is communicated with the second oil port 1032 by a second pipeline 9, the first pipeline 8 and the second pipeline 9 are connected in parallel by a first overflow valve 10 and a second overflow valve 11, and the flow directions of the first overflow valve 10 and the second overflow valve 11 are opposite. The first overflow valve 10 and the second overflow valve 11 can prevent the pressure difference between the first pipeline 8 and the second pipeline 9 from being too large, so that the piston of the gangway oil cylinder 103 moves too fast and is easily damaged. Figure 6 More preferably, as shown in FIG. 6, the fifth valve port 7011 is communicated with the first oil port 1031 by a first pipeline 8, the sixth valve port 7012 is communicated with the second oil port 1032 by a second pipeline 9, the first pipeline 8 and the second pipeline 9 are connected in parallel by a first overflow valve 10 and a second overflow valve 11, and the flow directions of the first overflow valve 10 and the second overflow valve 11 are opposite. The first overflow valve 10 and the second overflow valve 11 can prevent the pressure difference between the first pipeline 8 and the second pipeline 9 from being too large, so that the piston of the gangway oil cylinder 103 moves too fast and is easily damaged.

[0073] More preferably, as shown in FIG. 6, the fifth valve port 7011 is communicated with the first oil port 1031 by a first pipeline 8, the sixth valve port 7012 is communicated with the second oil port 1032 by a second pipeline 9, the first pipeline 8 and the second pipeline 9 are connected in parallel by a first overflow valve 10 and a second overflow valve 11, and the flow directions of the first overflow valve 10 and the second overflow valve 11 are opposite. The first overflow valve 10 and the second overflow valve 11 can prevent the pressure difference between the first pipeline 8 and the second pipeline 9 from being too large, so that the piston of the gangway oil cylinder 103 moves too fast and is easily damaged.

[0074] More preferably, as shown in FIG. 6, the fifth valve port 7011 is communicated with the first oil port 1031 by a first pipeline 8, the sixth valve port 7012 is communicated with the second oil port 1032 by a second pipeline 9, the first pipeline 8 and the second pipeline 9 are connected in parallel by a first overflow valve 10 and a second overflow valve 11, and the flow directions of the first overflow valve 10 and the second overflow valve 11 are opposite. The first overflow valve 10 and the second overflow valve 11 can prevent the pressure difference between the first pipeline 8 and the second pipeline 9 from being too large, so that the piston of the gangway oil cylinder 103 moves too fast and is easily damaged. Figure 1 More preferably, as shown in FIG. 6, the fifth valve port 7011 is communicated with the first oil port 1031 by a first pipeline 8, the sixth valve port 7012 is communicated with the second oil port 1032 by a second pipeline 9, the first pipeline 8 and the second pipeline 9 are connected in parallel by a first overflow valve 10 and a second overflow valve 11, and the flow directions of the first overflow valve 10 and the second overflow valve 11 are opposite. The first overflow valve 10 and the second overflow valve 11 can prevent the pressure difference between the first pipeline 8 and the second pipeline 9 from being too large, so that the piston of the gangway oil cylinder 103 moves too fast and is easily damaged.

[0075] Based on the above technical scheme, when the energy storage unit 403 is independently energized, the first reversing valve 3 is switched to the second state, the second reversing valve 5 is switched to the connected state, the third reversing valve 6 is switched to the disconnected state, the fourth reversing valve 15 is switched to the disconnected state, the oil of the hydraulic pump station 2 flows out from the oil outlet 201, flows through the third valve port 303, the fourth valve port 304, the second reversing valve 5, the fifth one-way valve 404, and then flows into the energy storage unit 403, and the independent energy storage is performed; when the stack oil cylinder 103 is in the non-working state, the energy storage unit 403 needs to be released, the first reversing valve 3 is switched to the second state, the second reversing valve 5 is switched to the disconnected state, the third reversing valve 6 is switched to the connected state, the fourth reversing valve 15 is switched to the connected state, the oil of the energy storage unit 403 flows out from the energy storage port 4031, flows through the sixth one-way valve 405, the third reversing valve 6, the third valve port 303, the fourth valve port 304, the fourth reversing valve 15, and then flows back to the hydraulic pump station 2.

[0076] More preferably, the value of the first pressure gauge 12 is denoted as P1, the value of the second pressure gauge 13 is denoted as P2, and the value of the third pressure gauge 14 is denoted as P3,

[0077] The control assembly 17 is configured to:

[0078] When the bridge 102 needs to be lifted, the first reversing valve 3 is switched to the third state, the second reversing valve 5 is switched to the disconnected state, the third reversing valve 6 is switched to the connected state, and the fourth reversing valve 15 is switched to the connected state, and when P3

[0079] When the bridge 102 needs to be lowered, the first reversing valve 3 is switched to the first state, the second reversing valve 5 is switched to the connected state, the third reversing valve 6 is switched to the disconnected state, and the fourth reversing valve 15 is switched to the disconnected state, and when P3

[0080] In a preferred embodiment, the set parameters k1 and k2 are coefficients greater than 1;

[0081] During the lifting of the bridge 102, when P3

[0082] During the lowering of the bridge 102, when P1 < k2P3, the second switching valve 5 is switched to the off state, and the fourth switching valve 15 is switched to the on state; at this time, it indicates that the gravitational potential energy of the bridge 102 is insufficient to continue to store energy in the energy storage unit 403, so as to avoid the problem of insufficient lowering of the bridge 102.

[0083] In a preferred embodiment, the range of k1 and k2 is 1.2-1.5. When k1 and k2 are less than 1.2, the above-mentioned condition is prone to occur, and when k1 and k2 are greater than 1.5, the gravitational potential energy of the bridge 102 is not fully utilized, and the energy consumption of the hydraulic pump station 2 is large.

[0084] Preferably, as shown in Figure 7 The hydraulic pump station 2 comprises an oil tank 203 and a pressurization driving member 204, the oil tank 203 is in communication with the oil outlet 201, and the pressurization driving member 204 is arranged between the oil tank 203 and the oil outlet 201.

[0085] Specifically, the pressurization driving member 204 is a driving motor.

[0086] During the lifting of the bridge 102, the pressurization driving member 204 pressurizes and outputs the oil output from the oil tank 203;

[0087] During the lowering of the bridge 102, the pressurization amount of the pressurization driving member 204 to the oil output from the oil tank 203 is reduced.

[0088] Specifically, the oil inlet 202 is in communication with the oil tank 203, and the oil tank 203 is provided with a thermometer, a liquid level meter, an air filter

[0089] In summary, the embodiment of the present application provides a boarding gangway energy compensation control system, when the bridge 102 needs to be lifted, the first reversing valve 3 is switched to the third state, the second reversing valve 5 is switched to the open state, the third reversing valve 6 is switched to the connected state, the oil of the hydraulic pump station 2 flows from the oil outlet 201 to the non-piston rod side of the gangway oil cylinder 103 through the third valve port 303, the fourth valve port 304 and the first oil port 1031 in turn, the oil of the piston rod side of the gangway oil cylinder 103 flows from the second oil port 1032 to the hydraulic pump station 2 through the second valve port 302, the fourth valve port 304 and the oil inlet 202 in turn, the oil of the energy storage assembly 4 flows from the output port 402 through the third reversing valve 6 and then converges with the oil flowing from the oil outlet 201, and then flows to the non-piston rod side of the gangway oil cylinder 103 to push the gangway oil cylinder 103 to lift the bridge 102; when the bridge 102 needs to be lowered, the first reversing valve 3 is switched to the first state, the second reversing valve 5 is switched to the connected state, and the third reversing valve 6 is switched to the open state, the oil of the hydraulic pump station 2 flows from the oil outlet 201 to the piston rod side of the gangway oil cylinder 103 through the third valve port 303, the second valve port 302 and the second oil port 1032 in turn, part of the oil in the non-piston rod side of the gangway oil cylinder 103 flows to the hydraulic pump station 2 through the first valve port 301, the fourth valve port 304 and the oil inlet 202 in turn, and the rest of the oil flows from the non-piston rod side of the gangway oil cylinder 103 to the energy storage assembly 4 through the first valve port 301, the fourth valve port 304, the second reversing valve 5 and the input port 401 in turn to be stored, so as to assist in lifting the bridge 102 next time.

[0090] The above only describes the preferred embodiments of the present application, and it should be noted that those skilled in the art can make some improvements and replacements without departing from the technical principles of the present application, and these improvements and replacements should also be considered as the protection scope of the present application.

Claims

1. A boarding bridge energy compensation control system, the boarding bridge (1) comprising a base (101), a bridge (102) and a bridge oil cylinder (103), one end of the bridge (102) being hinged to the base (101), the bridge oil cylinder (103) being hinged to the base (101), a power output end of the bridge oil cylinder (103) being hinged to the bridge (102), the bridge oil cylinder (103) being located below the bridge (102), the bridge oil cylinder (103) being used to drive the bridge (102) to rotate, the bridge oil cylinder (103) having a first oil port (1031) and a second oil port (1032), the first oil port (1031) being located at a piston rod free side, the second oil port (1032) being located at a piston rod side, characterized in that, The hydraulic pump station (2) has an oil outlet (201) and an oil inlet (202); The first reversing valve (3) has a first valve port (301), a second valve port (302), a third valve port (303), and a fourth valve port (304), and has a first state, a second state, and a third state. When the first reversing valve (3) is in the first state, the first valve port (301) and the fourth valve port (304) are communicated, and the second valve port (302) and the third valve port (303) are communicated; when the first reversing valve (3) is in the second state, the third valve port (303) and the fourth valve port (304) are communicated, and the first valve port (301) and the second valve port (302) are not communicated; when the first reversing valve (3) is in the third state, the first valve port (301) and the third valve port (303) are communicated, and the second valve port (302) and the fourth valve port (304) are communicated; the oil outlet (201) is communicated with the third valve port (303), the oil inlet (202) is communicated with the fourth valve port (304), the first valve port (301) is communicated with the first oil port (1031), and the second valve port (302) is communicated with the second oil port (1032); The energy storage assembly (4) has an input port (401) and an output port (402), the input port (401) is communicated with the fourth valve port (304), and the output port (402) is communicated with the third valve port (303); The second reversing valve (5) is arranged between the input port (401) and the fourth valve port (304), and has a communication state and a disconnection state; The third reversing valve (6) is consistent with the structure of the second reversing valve (5), and is arranged between the output port (402) and the third valve port (303); The pressure stabilizing valve group (7) includes a pressure stabilizing reversing valve (701), the pressure stabilizing reversing valve (701) has a fifth valve port (7011), a sixth valve port (7012), a seventh valve port (7013), and an eighth valve port (7014), and has a fourth state, a fifth state, and a sixth state. ​ When the constant pressure reversing valve (701) is in the fourth state, the fifth valve port (7011) communicates with the seventh valve port (7013), the sixth valve port (7012) communicates with the eighth valve port (7014), a first check valve (7015) is arranged between the fifth valve port (7011) and the seventh valve port (7013), the flow direction of the first check valve (7015) is from the seventh valve port (7013) to the fifth valve port (7011), and a throttle valve (7019) is arranged between the sixth valve port (7012) and the eighth valve port (7014). When the constant pressure reversing valve (701) is in the fifth state, the fifth valve port (7011) communicates with the seventh valve port (7013), the sixth valve port (7012) communicates with the eighth valve port (7014), a second check valve (7016) is arranged between the fifth valve port (7011) and the seventh valve port (7013), the flow direction of the second check valve (7016) is from the seventh valve port (7013) to the fifth valve port (7011), a third check valve (7017) is arranged between the sixth valve port (7012) and the eighth valve port (7014), and the flow direction of the third check valve (7017) is from the eighth valve port (7014) to the sixth valve port (7012). When the constant pressure reversing valve (701) is in the sixth state, the fifth valve port (7011) communicates with the seventh valve port (7013), the sixth valve port (7012) communicates with the eighth valve port (7014), a throttle valve (7019) is arranged between the fifth valve port (7011) and the seventh valve port (7013), and a fourth check valve (7018) is arranged between the sixth valve port (7012) and the eighth valve port (7014), wherein the flow direction of the fourth check valve (7018) is from the eighth valve port (7014) to the sixth valve port (7012). The seventh valve port (7013) communicates with the first valve port (301), the eighth valve port (7014) communicates with the second valve port (302), the fifth valve port (7011) communicates with the first oil port (1031), and the sixth valve port (7012) communicates with the second oil port (1032).

2. The embarkation pier energy compensation control system of claim 1, wherein, The fifth valve port (7011) and the first oil port (1031) are connected by a first pipeline (8), the sixth valve port (7012) and the second oil port (1032) are connected by a second pipeline (9), the first pipeline (8) and the second pipeline (9) are connected in parallel by a first overflow valve (10) and a second overflow valve (11), and the flow directions of the first overflow valve (10) and the second overflow valve (11) are opposite.

3. The embarkation pier energy compensation control system of claim 2, wherein, The energy storage assembly (4) comprises an energy storage unit (403) having an energy storage port (4031) in communication with the second directional valve (5), a fifth one-way valve (404) being provided between the energy storage port (4031) and the second directional valve (5), the liquid flow direction of the fifth one-way valve (404) being from the second directional valve (5) to the energy storage port (4031), the energy storage port (4031) being in communication with the third directional valve (6), a sixth one-way valve (405) being provided between the energy storage port (4031) and the third directional valve (6), the liquid flow direction of the sixth one-way valve (405) being from the energy storage port (4031) to the third directional valve (6).

4. The boarding trestle energy compensation control system according to claim 3, characterized in that: The first pipeline (8) is connected with a first pressure gauge (12), the second pipeline (9) is connected with a second pressure gauge (13), and the energy storage port (4031) is connected with a third pressure gauge (14).

5. The embarkation pier energy compensation control system of claim 4, wherein, Further comprising a fourth directional valve (15) and a control assembly (17), the first pipeline (8) is connected with a first pressure sensor (18), the second pipeline (9) is connected with a second pressure sensor (19), the energy storage port (4031) is connected with a third pressure sensor (20), the fourth directional valve (15) is identical in structure to the second directional valve (5), the fourth valve port (304) and the oil inlet port (202) are in communication with a third pipeline (16), the fourth directional valve (15) is located on the third pipeline (16) and is located on the downstream side of the oil inlet end of the second directional valve (5), and the control assembly (17) is electrically connected with the first directional valve (3), the second directional valve (5), the third directional valve (6), the first pressure sensor (18), the second pressure sensor (19), and the third pressure sensor (20).

6. The embarkation gangway energy compensation control system of claim 5, wherein Let the value of the first pressure gauge (12) be noted as , the value of the second pressure gauge (13) be noted as , and the value of the third pressure gauge (14) be noted as , The control assembly (17) is configured to: When the bridge (102) needs to be lifted, the first directional valve (3) is switched to the third state, the second directional valve (5) is switched to the disconnected state, the third directional valve (6) is switched to the connected state, and the fourth directional valve (15) is switched to the connected state, and when the third directional valve (6) is switched to the disconnected state;​ When the bridge (102) needs to be lowered, the first switching valve (3) is switched to the first state, the second switching valve (5) is switched to the communication state, the third switching valve (6) is switched to the disconnection state, and the fourth switching valve (15) is switched to the disconnection state, < When the bridge (102) needs to be lowered, the first switching valve (3) is switched to the first state, the second switching valve (5) is switched to the communication state, the third switching valve (6) is switched to the disconnection state, and the fourth switching valve (15) is switched to the disconnection state.

7. The embarkation pier energy compensation control system of claim 1, wherein, The hydraulic pump station (2) comprises an oil tank (203) and a pressure boosting driving member (204), the oil tank (203) is in communication with the oil outlet (201), and the pressure boosting driving member (204) is arranged between the oil tank (203) and the oil outlet (201).

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