Hoisting type wave compensation system

Abstract

The utility model discloses a hoisting type wave compensation system which comprises an upper bottom plate, a lower bottom plate and an integrated compensation module, the integrated compensation module is arranged between the upper bottom plate and the lower bottom plate, and a lifting lug is arranged on the upper bottom plate; the integrated compensation module comprises a compensation oil cylinder, an inflation energy storage unit, a valve group unit, a wireless control unit and an oil liquid control unit, a piston rod of the compensation oil cylinder penetrates through the lower bottom plate, the inflation energy storage unit is connected with the valve group unit, the valve group unit is connected with a rod cavity of the compensation oil cylinder, the inflation energy storage unit and the valve group unit are both connected with the wireless control unit, and the wireless control unit is connected with the oil liquid control unit. The valve group unit and the wireless control unit are both connected with the oil liquid control unit. A hoisting mode is adopted, the whole wave compensation system does not occupy deck space, more resources can be placed on a ship deck, and the system does not need to be installed, can be used while being hoisted, and is high in flexibility.

Description

Technical Field

[0001] The utility model relates to the technical field of wave compensation, in particular to a hoisting type wave compensation system. Background Art

[0002] Ships are important means of transportation at sea and are important carriers of personnel and equipment. However, due to the influence of waves, ships will experience severe shaking and bumping, which seriously affects the lives of personnel and the work of equipment. The marine wave compensation system is an important equipment to solve the impact of waves. It is mainly used in shipborne equipment to improve the working accuracy of equipment and the impact of waves on personnel.

[0003] At present, most winch-type wave compensation systems (active type) are used. This compensation system is installed on the deck of the ship and can compensate for the irregular swinging of the ship with the waves. However, the existing winch-type wave compensation system has the following shortcomings:

[0004] 1. The wave compensation equipment occupies a large space on the deck, and the utilization rate of the deck space is low.

[0005] 2. The installation method of heave compensation equipment is relatively complicated. Different ships require different installation methods, which has poor flexibility.

[0006] 3. Active heave compensation equipment requires a larger power source, drags more cables, and has a complex and untidy overall structure. Utility Model Content

[0007] In order to solve the problems existing in the prior art, the utility model provides a hoisting type wave compensation system.

[0008] The technical solution adopted by the utility model to solve its technical problems is: a hoisting wave compensation system, comprising: an upper bottom plate, a lower bottom plate and an integrated compensation module, the integrated compensation module is arranged between the upper bottom plate and the lower bottom plate, and the upper bottom plate is provided with a lifting lug; the integrated compensation module comprises: a compensation cylinder, an air storage unit, a valve group unit, a wireless control unit and an oil control unit, the piston rod of the compensation cylinder passes through the lower bottom plate, the air storage unit is connected to the valve group unit, the valve group unit is connected to the rod chamber of the compensation cylinder, the air storage unit and the valve group unit are both connected to the wireless control unit, and the valve group unit and the wireless control unit are both connected to the oil control unit.

[0009] Furthermore, the oil control unit comprises: an oil inlet branch and an oil drain branch, the oil inlet branch is used to control the switch of the valve group unit, and the pressure relief oil of the valve group unit returns to the oil tank through the oil drain branch.

[0010] Furthermore, the oil inlet branch includes: a high-pressure bladder accumulator, a filter, a first electromagnetic ball valve and a first proportional flow valve connected in sequence, and the first proportional flow valve is connected to the valve group unit.

[0011] Furthermore, the oil leakage branch includes: a low-pressure bladder accumulator, a second proportional flow valve and a second electromagnetic ball valve connected in sequence, and the second electromagnetic ball valve is connected to the valve group unit.

[0012] Furthermore, the wireless control unit includes: a controller and a battery pack, the battery pack is used to supply power to the controller, and the controller is used to wirelessly control the switch of the valve and monitor the displacement signal and the pressure signal.

[0013] Furthermore, the wireless control unit also includes: an antenna for receiving external signals.

[0014] Furthermore, the battery pack is a rechargeable battery pack.

[0015] Furthermore, the gas-filled energy storage unit comprises: a nitrogen bottle and a piston accumulator, the upper chamber of the piston accumulator is communicated with the nitrogen bottle, and the lower chamber of the piston accumulator is connected with the valve group unit.

[0016] Furthermore, a first displacement sensor for monitoring piston displacement is installed on the compensation cylinder.

[0017] Furthermore, the valve group unit includes an adjustable damping valve group.

[0018] The beneficial effects of the utility model are:

[0019] The lifting lug is used to connect the equipment, and the piston rod of the compensation cylinder is used to connect the hoisted object. In this way, the entire wave compensation system will not occupy deck space, and more resources can be placed on the ship deck. This system does not require installation and can be used whenever it is lifted, which is highly flexible.

[0020] The integrated compensation module and integrated structure are adopted, and there is no need to drag various power cables and control cables. The overall structure is simple and beautiful. This system relies on the lifting force of the waves and the gravity of the hull to control the movement of the piston of the compensation cylinder, thereby compressing and releasing the gas in the accumulator to compensate for the heave displacement of the heavy object. It is a passive compensation method and does not require additional power source equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0022] Figure 1 It is a schematic diagram of the overall structure of the hoisting type heave compensation system of the utility model.

[0023] Figure 2 It is a principle diagram of the integrated compensation module of the utility model.

[0024] In the figure: 1, upper base plate; 2, lower base plate; 3, integrated compensation module; 4, first displacement sensor; 5, second displacement sensor; 6, pressure sensor; 101, lifting lug; 31, compensation cylinder; 32, gas storage unit; 33, valve group unit; 34, wireless control unit; 35, oil control unit; 321, nitrogen bottle; 322, piston accumulator; 331, adjustable damping valve group; 341, controller; 342, battery pack; 343, antenna; 351, high-pressure bladder accumulator; 352, filter; 353, first electromagnetic ball valve; 354, first proportional flow valve; 355, low-pressure bladder accumulator; 356, second proportional flow valve; 357, second electromagnetic ball valve. DETAILED DESCRIPTION

[0025] Now the utility model is further described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, and therefore only show the components related to the utility model.

[0026] In the description of the present utility model, it is necessary to understand that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] like Figure 1 to Figure 2As shown, the hoisting wave compensation system of the utility model comprises: an upper bottom plate 1, a lower bottom plate 2 and an integrated compensation module 3, wherein the integrated compensation module 3 is arranged between the upper bottom plate 1 and the lower bottom plate 2, and a lifting lug 101 is arranged on the upper bottom plate 1. The integrated compensation module 3 comprises: a compensation cylinder 31, an air storage unit 32, a valve group unit 33, a wireless control unit 34 and an oil control unit 35, wherein the piston rod of the compensation cylinder 31 passes through the lower bottom plate 2, the air storage unit 32 is connected to the valve group unit 33, the valve group unit 33 is connected to the rod chamber of the compensation cylinder 31, the air storage unit 32 and the valve group unit 33 are both connected to the wireless control unit 34, and the valve group unit 33 and the wireless control unit 34 are both connected to the oil control unit 35.

[0029] It should be noted that the wave compensation system of the utility model adopts a hoisting method, the lifting lug 101 is used to connect the equipment, and the piston rod of the compensation cylinder 31 is used to connect the hoisted object. In this way, the entire wave compensation system will not occupy the deck space, and more resources can be placed on the ship deck. This system does not need to be installed and can be used whenever it is hoisted, and has strong flexibility. It adopts an integrated compensation module 3 with an integrated structure, and there is no need to drag various power cables and control cables. The overall structure is simple and beautiful. This system relies on the lifting force of the waves and the gravity of the hull itself to control the movement of the piston of the compensation cylinder 31, thereby compressing and releasing the gas in the accumulator to compensate for the heave displacement of the heavy object. It is a passive compensation method and does not require additional power source equipment.

[0030] Specifically, the oil control unit 35 includes: an oil inlet branch and an oil drain branch. The oil inlet branch is used to control the switch of the valve group unit 33. The pressure relief oil of the valve group unit 33 returns to the oil tank through the oil drain branch. The oil inlet branch includes: a high-pressure bladder accumulator 351, a filter 352, a first electromagnetic ball valve 353 and a first proportional flow valve 354 connected in sequence. The first proportional flow valve 354 is connected to the valve group unit 33. The oil drain branch includes: a low-pressure bladder accumulator 355, a second proportional flow valve 356 and a second electromagnetic ball valve 357 connected in sequence. The second electromagnetic ball valve 357 is connected to the valve group unit 33.

[0031] It should be noted that the electromagnetic ball valve is used to control the on-off of the oil circuit, and the proportional flow valve is used to control the flow and pressure of the oil in the oil circuit. The filter 352 can improve the cleanliness of the oil. That is to say, when the oil is fed in, the first electromagnetic ball valve 353 is opened, the second electromagnetic ball valve 357 is closed, and the hydraulic oil in the oil tank passes through the high-pressure bladder accumulator 351, the filter 352, the first electromagnetic ball valve 353 and the first proportional flow valve 354 in sequence to reach the valve group unit 33, so that the valve group unit 33 is opened. After the valve group unit 33 is opened, the hydraulic oil in the gas storage unit 32 can enter the rod chamber of the compensation cylinder 31 to compensate for the irregular movement of the waves. When the object has been placed at the specified position, the first solenoid ball valve 353 is closed, the second solenoid ball valve 357 is opened, and the hydraulic oil of the control oil port of the valve group unit 33 passes through the second solenoid ball valve 357, the second proportional flow valve 356, and the low-pressure bladder accumulator 355 in sequence and then returns to the oil tank. At this time, the valve group unit 33 is in a closed state. After the valve group unit 33 is closed, the oil in the air storage unit 32 stops entering the rod chamber of the compensation cylinder 31, and the wave compensation function stops.

[0032] For example, the valve group unit 33 includes an adjustable damping valve group 331 (Adjustable Damping Valve, ADV for short). Compared with ordinary valve groups, the adjustable damping valve group 331 can adjust the damping size by adjusting the opening, and the switch state of the adjustable damping valve group 331 can be regulated by hydraulic oil, which is more power-saving than the electronically controlled valve group.

[0033] Specifically, the wireless control unit 34 includes: a controller 341, a battery pack 342 and an antenna 343, the battery pack 342 is used to power the controller 341, the controller 341 is used to wirelessly control the switch of the valve, monitor the displacement signal and the pressure signal, and the antenna 343 is used to receive external signals. For example, the battery pack 342 is a rechargeable battery pack. The gas storage unit 32 includes: a nitrogen bottle 321 and a piston accumulator 322, the upper chamber of the piston accumulator 322 is connected to the nitrogen bottle 321, and the lower chamber of the piston accumulator 322 is connected to the valve group unit 33. A first displacement sensor 4 for monitoring the displacement of the piston is installed on the compensation cylinder 31. A second displacement sensor 5 for monitoring the displacement of the piston is installed on the piston accumulator 322. A pressure sensor 6 is installed on both the high-pressure bladder accumulator 351 and the low-pressure bladder accumulator 355.

[0034] In other words, the controller 341 can remotely control the switch of the electromagnetic ball valve and the proportional flow valve, as well as the opening of the proportional flow valve. The controller 341 can also obtain the data monitored by the first displacement sensor 4, the second displacement sensor 5, and the pressure sensor 6 wirelessly.

[0035] The working process of this utility model:

[0036] Before use: according to the use conditions, nitrogen of appropriate pressure is respectively charged into the nitrogen bottle 321, the high-pressure bladder accumulator 351, and the low-pressure bladder accumulator 355, and the wireless control unit 34 receives the command signal to close the first electromagnetic ball valve 353, the first proportional flow valve 354, the second proportional flow valve 356, and the second electromagnetic ball valve 357. At this time, no oil flows, and the piston of the piston accumulator 322 and the piston of the compensation cylinder 31 are respectively in the middle position of their full strokes.

[0037] During compensation: the wireless control unit 34 opens the first electromagnetic ball valve 353 and the first proportional flow valve 354, and adjusts the opening of the first proportional flow valve 354. At this time, the hydraulic oil in the oil tank passes through the high-pressure bladder accumulator 351, the filter 352, the first electromagnetic ball valve 353 and the first proportional flow valve 354 in sequence to reach the control oil port of the valve group unit 33, so that the valve group unit 33 is opened. After the valve group unit 33 is opened, the high-pressure nitrogen in the nitrogen bottle 321 enters the upper chamber of the piston accumulator 322, pushing the piston of the piston accumulator 322 to move downward, and the oil in the lower chamber of the piston accumulator 322 can enter the rod chamber of the compensation cylinder 31. At this time, the wave compensation system can compensate for the irregular movement of waves.

[0038] After the compensation is completed (the hoisted object has been placed at the designated position): the wireless control unit 34 closes the first electromagnetic ball valve 353 and the first proportional flow valve 354, opens the second proportional flow valve 356 and the second electromagnetic ball valve 357, and adjusts the opening of the second proportional flow valve 356. At this time, the oil in the control oil port of the valve group unit 33 passes through the second electromagnetic ball valve 357, the second proportional flow valve 356, and the low-pressure bladder accumulator 355 in sequence and returns to the oil tank, and the valve group unit 33 is closed. After the valve group unit 33 is closed, the oil in the piston accumulator 322 stops entering the rod chamber of the compensation cylinder 31. The compensation function stops.

[0039] The wave compensation system of the utility model adopts a hoisting method, the lifting lug 101 is used to connect the equipment, and the piston rod of the compensation cylinder 31 is used to connect the hoisted object. In this way, the entire wave compensation system will not occupy the deck space, and more resources can be placed on the ship deck. This system does not need to be installed and can be used whenever it is hoisted, and has strong flexibility. It adopts an integrated compensation module 3 with an integrated structure, and there is no need to drag various power cables and control cables. The overall structure is simple and beautiful. This system relies on the lifting force of the waves and the gravity of the hull itself to control the movement of the piston of the compensation cylinder 31, thereby compressing and releasing the gas in the accumulator to compensate for the heave displacement of the heavy object. It is a passive compensation method and does not require additional power source equipment.

[0040] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without departing from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A hoisting type heave compensation system, characterized in that: include: An upper base plate (1), a lower base plate (2) and an integrated compensation module (3), wherein the integrated compensation module (3) is arranged between the upper base plate (1) and the lower base plate (2), and a lifting lug (101) is provided on the upper base plate (1); The integrated compensation module (3) comprises: a compensation cylinder (31), an air storage unit (32), a valve group unit (33), a wireless control unit (34) and an oil control unit (35); the piston rod of the compensation cylinder (31) passes through the lower base plate (2); the air storage unit (32) is connected to the valve group unit (33); the valve group unit (33) is connected to the rod cavity of the compensation cylinder (31); the air storage unit (32) and the valve group unit (33) are both connected to the wireless control unit (34); and the valve group unit (33) and the wireless control unit (34) are both connected to the oil control unit (35).

2. The hoisting type heave compensation system according to claim 1, characterized in that: The oil control unit (35) comprises an oil inlet branch and an oil drain branch, wherein the oil inlet branch is used to control the switch of the valve group unit (33), and the pressure relief oil of the valve group unit (33) returns to the oil tank through the oil drain branch.

3. The hoisting type heave compensation system according to claim 2, characterized in that: The oil inlet branch comprises: a high-pressure bladder accumulator (351), a filter (352), a first electromagnetic ball valve (353) and a first proportional flow valve (354) which are connected in sequence, and the first proportional flow valve (354) is connected to the valve group unit (33).

4. The hoisting type heave compensation system according to claim 2, characterized in that: The oil leakage branch comprises: a low-pressure bladder accumulator (355), a second proportional flow valve (356) and a second electromagnetic ball valve (357) which are connected in sequence, and the second electromagnetic ball valve (357) is connected to the valve group unit (33).

5. The hoisting type heave compensation system according to claim 1, characterized in that: The wireless control unit (34) comprises: a controller (341) and a battery pack (342), wherein the battery pack (342) is used to supply power to the controller (341), and the controller (341) is used to wirelessly control the opening and closing of the valve and monitor the displacement signal and the pressure signal.

6. The hoisting type heave compensation system according to claim 5, characterized in that: The wireless control unit (34) further comprises an antenna (343) for receiving external signals.

7. The hoisting type heave compensation system according to claim 5, characterized in that: The battery pack (342) is a rechargeable battery pack.

8. The hoisting type heave compensation system according to claim 1, characterized in that: The gas charging energy storage unit (32) comprises: a nitrogen bottle (321) and a piston accumulator (322), wherein the upper chamber of the piston accumulator (322) is communicated with the nitrogen bottle (321), and the lower chamber of the piston accumulator (322) is connected to the valve group unit (33).

9. The hoisting type heave compensation system according to claim 1, characterized in that: The compensation oil cylinder (31) is provided with a first displacement sensor (4) for monitoring the displacement of the piston.

10. The hoisting type heave compensation system according to claim 1, characterized in that: The valve group unit (33) comprises an adjustable damping valve group (331).

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