CN112555234A - Automatic pressure regulating system for regulating oil leakage pressure of underwater operation equipment - Google Patents
Automatic pressure regulating system for regulating oil leakage pressure of underwater operation equipment Download PDFInfo
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- CN112555234A CN112555234A CN201910850448.5A CN201910850448A CN112555234A CN 112555234 A CN112555234 A CN 112555234A CN 201910850448 A CN201910850448 A CN 201910850448A CN 112555234 A CN112555234 A CN 112555234A
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- oil
- leakage
- regulating system
- pressure regulating
- leakage oil
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/006—Compensation or avoidance of ambient pressure variation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
- B63C11/00—Equipment for dwelling or working underwater; Means for searching for underwater objects
- B63C11/52—Tools specially adapted for working underwater, not otherwise provided for
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Engineering & Computer Science (AREA)
- Ocean & Marine Engineering (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The invention provides an automatic pressure regulating system for regulating the oil leakage pressure of underwater operation equipment, wherein the underwater operation equipment comprises a hydraulic system, and the automatic pressure regulating system comprises: the driving mechanism is provided with an oil leakage port; the leakage oil tank is respectively connected with the hydraulic system and the leakage oil port; the hydraulic pump is connected with the driving mechanism and is provided with an oil suction port and an output port, and the oil suction port is communicated with the leakage oil tank; a controller; the controller is respectively connected with the leakage oil tank and the driving mechanism, and can receive a capacity change signal of leakage oil in the leakage oil tank in real time, and adjust and control the rotating speed of the driving mechanism according to the received signal so as to drive the hydraulic pump to suck the leakage oil in the leakage oil tank through the oil suction port and convey the leakage oil to the liquid level oil tank through the output port, thereby adjusting the pressure of the leakage oil of the underwater operation equipment.
Description
Technical Field
The invention belongs to the technical field of hydraulic systems, and particularly relates to an automatic pressure regulating system for regulating oil leakage pressure of underwater operation equipment.
Background
Hydraulic system components, such as hydraulic control valves, hydraulic motors, etc., may develop internal leakage of oil during operation. In the application process of the hydraulic system, a leakage oil port is usually connected to an oil tank, so that the internal oil drainage pressure is kept within a limit pressure value, and the normal work of a hydraulic element and the system is ensured. However, in some underwater work occasions, for example, when a hydraulic power system supplies power to underwater operation equipment from the water surface, because a certain height difference exists in the water depth and the pipeline is long, the internal oil drainage pressure cannot be kept consistent with the pressure of a water surface oil tank, and the pressure cannot be kept within the limit pressure. Therefore, the oil drainage pressure of the hydraulic system cannot be automatically adjusted, the normal work of underwater operation equipment is seriously influenced, and the efficiency of underwater operation is reduced.
Disclosure of Invention
In view of the above-mentioned problems, the present invention is directed to an automatic pressure regulating system for regulating the pressure of leaked oil in an underwater operation equipment, which is capable of absorbing the leaked oil in the hydraulic system operating underwater into a tank on the water surface, and automatically regulating the oil discharge amount according to the measured value of the pressure of internal oil drainage so as to maintain the oil drainage pressure at a set value, thereby effectively preventing the hydraulic components and systems under water from malfunctioning due to the excessive pressure of internal oil drainage.
To this end, according to the present invention, there is provided an automatic pressure regulating system for regulating a leakage oil pressure of underwater working equipment including a hydraulic system, the automatic pressure regulating system comprising: the driving mechanism is provided with an oil leakage port; the leakage oil tank is used for collecting leakage oil and is respectively connected with the hydraulic system and the leakage oil port; the hydraulic pump is connected with the driving mechanism and is provided with an oil suction port and an output port, the oil suction port is communicated with the leakage oil tank, and the oil outlet is communicated with a liquid level oil tank on the water surface; and a controller for regulating the rotational speed of the drive mechanism; the controller is respectively connected with the leakage oil tank and the driving mechanism, and can receive a capacity change signal of leakage oil in the leakage oil tank in real time, and adjust and control the rotating speed of the driving mechanism according to the received signal so as to drive the hydraulic pump to suck the leakage oil in the leakage oil tank through the oil suction port and convey the leakage oil to the liquid level oil tank through the output port, thereby adjusting the pressure of the leakage oil of the underwater operation equipment.
In a preferred embodiment, a displacement sensor is provided in the leakage reservoir for measuring the volume of leakage oil in the leakage reservoir.
In a preferred embodiment, the displacement sensor is connected with the controller, and the controller can receive a measurement signal of the displacement sensor and send a control signal to control and adjust the rotating speed of the driving mechanism, so that the flow of the output port of the hydraulic pump is adjusted.
In a preferred embodiment, the drive mechanism is a hydraulic motor or an electric motor.
In a preferred embodiment, the driving mechanism is connected with the hydraulic pump through a coupler, a coupler shell is arranged outside the coupler, and the driving mechanism and the hydraulic pump are fixedly connected with the coupler shell.
In a preferred embodiment, the coupling housing is filled with hydraulic oil, and the automatic pressure regulating system further includes a pressure compensator connected to a pressure compensator interface disposed at the bottom of the coupling housing.
In a preferred embodiment, the drive mechanism and the hydraulic pump are relatively fixedly mounted to the coupling housing.
In a preferred embodiment, a first sealing ring and a second sealing ring are respectively arranged between the coupling housing and the drive mechanism and the hydraulic pump.
In a preferred embodiment, the oil suction port is communicated with the leakage oil tank through an oil pipe, and the output port is communicated with the liquid level oil tank through an oil pipe.
In a preferred embodiment, the oil suction port and the output port are oppositely disposed on a housing of the hydraulic pump.
Compared with the prior art, the automatic pressure regulating system for regulating the oil leakage pressure of the underwater operation equipment has the advantages that:
according to the automatic pressure regulating system for regulating the pressure of the leaked oil of the underwater operation equipment, the pressure of the leaked oil of the underwater operation equipment is regulated in a mode that the driving mechanism drives the hydraulic pump through the coupler. The automatic pressure regulating system can convey leakage oil of a hydraulic system of underwater operation equipment working underwater to a liquid level oil tank on the water surface to regulate the pressure of the leakage oil of the underwater operation equipment, so that the influence on normal operation caused by overlarge pressure of the leakage oil of the underwater operation equipment can be effectively avoided. This automatic pressure regulating system can let out the volume change of leaking the oil in the oil tank through displacement sensor real-time measurement to in time give the controller with measuring signal transmission, and then through controller automatically regulated control actuating mechanism's rotational speed, realize that automatically regulated lets out the output flow of leaking oil, show the regulation precision that has strengthened the draining pressure that the underwater operation was equipped, effectively guaranteed the normal operation that the underwater operation was equipped.
Drawings
The invention will now be described with reference to the accompanying drawings.
Fig. 1 schematically shows the structure of an automatic pressure regulating system for regulating the pressure of leaked oil of underwater working equipment according to the present invention.
Fig. 2 is a front view showing an external structure of a driving mechanism and a hydraulic pump in the automatic pressure regulating system of fig. 1.
Fig. 3 shows a perspective view of the external structure of the drive mechanism and the hydraulic pump shown in fig. 1.
Fig. 4 is a sectional view of a connection structure of the driving mechanism and the hydraulic pump shown in fig. 1.
In the present application, the drawings are all schematic and are used only for illustrating the principles of the invention and are not drawn to scale.
Detailed Description
The invention is described below with reference to the accompanying drawings.
Fig. 1 schematically shows the structure of an automatic pressure regulating system for regulating the pressure of leaked oil of underwater working equipment according to the present invention. Therein, subsea work rig 200 includes a hydraulic system 210. During operation, the hydraulic system 210 may generate leakage oil, and the automatic pressure regulating system is used to automatically regulate the pressure of the leakage oil of the hydraulic system 210.
As shown in fig. 1, the automatic pressure regulating system includes a driving mechanism 110 and a hydraulic pump 120, and the driving mechanism 110 may be a hydraulic motor or an electric motor. Drive mechanism 110 and hydraulic pump 120 are connected by coupling 130. The automatic pressure regulating system regulates the pressure of leakage oil of the hydraulic system 210 of the underwater operation equipment 200 in a manner that the driving mechanism 110 drives the hydraulic pump 120 through the coupling 130, thereby preventing the driving mechanism 110 from being damaged due to the excessive pressure of the housing of the underwater driving mechanism 110.
As shown in fig. 2, a first control port 111 and a second control port 112 of the housing of the drive mechanism 110. A first control port 111 and a second control port (not shown) are oppositely disposed on the housing of the drive mechanism 110. Also, the drive mechanism 110 is provided with a leak oil port (not shown) for discharging the leak oil. The first control port 111 and the second control port are configured to control the rotation of the drive mechanism 110. The first control port 111 and the second control port are respectively connected with a hydraulic oil pipe (not shown), and the hydraulic oil pipes are respectively provided with a control valve. During the operation, the injection flow rate and the discharge flow rate of the hydraulic oil in the first control port 111 and the second control port are controlled by the control valve, and the drive mechanism 110 is controlled to rotate to perform the driving operation. The control mode of the driving mechanism 110 can effectively ensure the control precision, thereby improving the working efficiency and enhancing the working effect.
According to the present invention, the automatic pressure regulating system further includes a leakage oil tank 140 for collecting leakage oil, and the leakage oil tank 140 is connected to the hydraulic system 210 and the leakage oil port of the driving mechanism 110, respectively. The leakage reservoir 140 is made of an elastic material, which can be adapted to expand and contract according to the volume of the oil in the leakage reservoir 140. For example, when the volume of oil increases, the pressure of oil inside the leak tank 140 increases, so that the volume of the leak tank 140 increases. When the volume of the leaking oil decreases, the pressure of the oil inside the leaking oil tank 140 increases, so that the volume of the leaking oil tank 140 increases. In one embodiment, a displacement sensor 141 is provided in the leakage oil tank 140, and the displacement sensor 141 is used to measure the volume change of the leakage oil in the leakage oil tank 140 in real time.
As shown in fig. 2 and 3, an oil suction port 121 is provided in a housing of the hydraulic pump 120. The oil suction port 121 communicates with the leakage oil tank 140 through an oil pipe for sucking leakage oil in the leakage oil tank 140. In one embodiment, the oil suction port 121 communicates with the leakage oil tank 140 through a hydraulic hose. The housing of the hydraulic pump 120 is further provided with an output port 122, and the output port 122 is opposite to the oil suction port 121. The output port 122 is capable of withstanding high hydraulic pressures and the output port 122 is in communication via an output line with a fluid reservoir 202 in a hydraulic power unit 202 disposed on the surface vessel 203. Therefore, the automatic pressure regulating system sucks the leakage oil in the leakage oil tank 140 through the oil suction port 121 and conveys the leakage oil to the liquid level oil tank 202 on the water surface through the output port 122, so that the pressure of the leakage oil of the underwater operation equipment is regulated.
According to the present invention, the coupling 130 is installed between the driving mechanism 110 and the hydraulic pump 120, and the driving mechanism 110 drives the hydraulic pump 120 through the coupling 130, so that the oil suction port 121 sucks the leakage oil in the leakage oil tank 140, and further, the leakage oil is delivered to the surface oil tank 202 on the water surface through the output port 122, thereby adjusting the pressure of the leakage oil of the underwater working equipment.
As shown in fig. 2 and 3, the coupling 130 includes a coupling housing 131, and the coupling housing 131 is configured as a rectangular cube. Both ends of the coupling 130 are respectively connected with the driving mechanism 110 and the hydraulic pump 120, and the housings of the driving mechanism 110 and the hydraulic pump 120 are respectively fixedly connected with the opposite side walls of the coupling housing 131. In one embodiment, the housings of drive mechanism 110 and hydraulic pump 120 are each fixedly coupled to coupling housing 131 by screws. The coupler 130 can be effectively protected by the coupler shell 131, and the coupler 130 is effectively prevented from being damaged due to direct contact of the coupler 130 and outside water.
In order to ensure the sealing performance between the coupling housing 131 and the driving mechanism 110 and the hydraulic pump 120, a first sealing ring 115 is provided at the joint between the coupling housing 131 and the casing of the driving mechanism 110, and a second sealing ring 125 is provided at the joint between the coupling housing 131 and the casing of the hydraulic pump 120, as shown in fig. 4. The first sealing ring 115 and the second sealing ring 125 can effectively ensure the sealing performance of the joint of the coupling housing 131, the driving mechanism 110 and the hydraulic pump 120, so as to effectively seal the coupling housing 131 and protect the coupling 130.
According to the present invention, the automatic pressure regulating system further includes a pressure compensator (not shown). The bottom of the coupling housing 131 is provided with a pressure compensator interface 133, and the coupling housing 131 is filled with hydraulic oil. The pressure compensator is in communication with the interior cavity of the coupling housing 131 through a pressure compensator interface 133 for regulating oil pressure to balance the oil pressure within the coupling housing 131 with the outside water pressure. Therefore, the strength and sealing requirements of the coupling shell 131 can be reduced, the automatic pressure regulating system can be suitable for pressures in different water depths, and the applicability of the automatic pressure regulating system is enhanced.
As shown in fig. 4, an oil inlet is provided at an upper end of the coupling housing 131, and a plug 134 is provided in the oil inlet. The oil inlet is used for injecting hydraulic oil into the coupling housing 131, and the plug 134 is used for closing the oil inlet to ensure the sealing of the coupling housing 131.
According to the present invention, the automatic pressure regulating system further includes a controller 150 for regulating the rotational speed of the control drive mechanism 110. The controller 150 is respectively connected to the leakage oil tank 140 and the driving mechanism 110, and the controller 140 can receive the volume information of the leakage oil in the leakage oil tank 140 measured by the displacement sensor 141 in real time and send a control signal to the driving mechanism 110 to control the rotation speed of the driving mechanism 110, so as to adjust the flow rate of the leakage oil output by the hydraulic pump 120 and realize automatic adjustment of the pressure of the leakage oil in the leakage oil tank 140.
The operation of the automatic pressure regulating system for regulating the pressure of leaked oil of underwater working equipment according to the present invention will be briefly described below. During underwater operation of the underwater operation equipment 200, oil in the hydraulic system 210 leaks into the leakage oil tank 140, so that the leakage oil pressure of the underwater operation equipment 200 is gradually increased. At this time, the displacement sensor 141 in the leakage oil tank 140 detects a change in the volume of the leakage oil in the leakage oil tank 140 in real time and transmits the measured information to the controller 150 in time. The controller 150 receives the signal from the displacement sensor 140, and then automatically adjusts the rotation speed of the control driving mechanism 110, controls the hydraulic pump 120 to suck the leaking oil in the leaking oil tank 140 through the oil suction port 121, and automatically adjusts the output flow of the output port 122 of the hydraulic pump 120, so that the leaking oil in the leaking oil tank 140 is delivered to the liquid level oil tank on the water surface through the output port 122. Thereby, the automatic adjustment of the pressure of the relief oil of the underwater working equipment 200 is completed.
According to the automatic pressure regulating system for regulating the pressure of the leakage oil of the underwater working equipment of the present invention, the pressure of the leakage oil of the underwater working equipment 200 is regulated in such a manner that the driving mechanism 110 drives the hydraulic pump 120 through the coupling 130. The automatic pressure regulating system can convey the leakage oil of the hydraulic system of the underwater operation equipment 200 to the liquid level oil tank 202 on the water surface to regulate the pressure of the leakage oil of the underwater operation equipment 200, so that the influence on normal operation caused by overlarge pressure of the leakage oil of the underwater operation equipment 200 can be effectively avoided. This automatic pressure regulating system can measure the volume change of leaking the oil in leaking oil tank 140 through displacement sensor 141 in real time to in time send measuring signal for controller 150, and then through the rotational speed of controller 150 automatically regulated control actuating mechanism 110, realize automatically regulated and leak the output flow of oil, show the regulation precision that has strengthened the draining pressure of underwater operation equipment, effectively guaranteed the normal operation of underwater operation equipment.
Finally, it should be noted that the above-mentioned embodiments are only preferred embodiments of the present invention, and do not limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing examples, or that equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. An automatic pressure regulating system for regulating oil leakage pressure of subsea operation equipment, said subsea operation equipment comprising a hydraulic system (210), said automatic pressure regulating system comprising:
the driving mechanism (110) is provided with an oil leakage port;
a leakage oil tank (141) for collecting leakage oil, the leakage oil tank being connected to the hydraulic system and the leakage oil port, respectively;
the hydraulic pump (120) is connected with the driving mechanism and is provided with an oil suction port (121) and an output port (122), the oil suction port is communicated with the leakage oil tank, and the oil outlet is communicated with a liquid level oil tank (202) on the water surface; and
a controller (150) for regulating the rotational speed of the drive mechanism;
the controller is respectively connected with the leakage oil tank and the driving mechanism, and can receive a capacity change signal of leakage oil in the leakage oil tank in real time, and adjust and control the rotating speed of the driving mechanism according to the received signal so as to drive the hydraulic pump to suck the leakage oil in the leakage oil tank through the oil suction port and convey the leakage oil to the liquid level oil tank through the output port, thereby adjusting the pressure of the leakage oil of the underwater operation equipment.
2. The automatic pressure regulating system according to claim 1, wherein a displacement sensor (141) for measuring a volume of leakage oil within the leakage oil tank is provided in the leakage oil tank.
3. The automatic pressure regulating system of claim 2, wherein the displacement sensor is connected to the controller, and the controller is capable of receiving a measurement signal from the displacement sensor and sending a control signal to control and regulate the rotation speed of the driving mechanism, so as to regulate the flow rate of the output port of the hydraulic pump.
4. The automatic pressure regulating system of claim 1 or 2, wherein the drive mechanism is a hydraulic motor or an electric motor.
5. The automatic pressure regulating system of claim 1, wherein the driving mechanism is connected with the hydraulic pump through a coupling (130), a coupling housing (131) is arranged outside the coupling, and the driving mechanism and the hydraulic pump are both fixedly connected with the coupling housing.
6. The automatic pressure regulating system of claim 5, wherein the coupling housing is filled with hydraulic oil, the automatic pressure regulating system further comprising a pressure compensator connected to a pressure compensator interface (133) disposed at the bottom of the coupling housing.
7. The automatic pressure regulating system of claim 5 or 6 wherein said drive mechanism and said hydraulic pump are relatively fixedly mounted to said coupling housing.
8. The automatic pressure regulating system of claim 5 or 6, wherein a first sealing ring (115) and a second sealing ring (125) are provided between the coupling housing and the drive mechanism and the hydraulic pump, respectively.
9. The automatic pressure regulating system of claim 1, wherein the oil suction port communicates with the spill reservoir via an oil line, and the output port communicates with the level reservoir via an oil line.
10. The automatic pressure regulating system of claim 1, wherein the oil suction port and the output port are oppositely disposed on a housing of the hydraulic pump.
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| CN201910850448.5A CN112555234B (en) | 2019-09-10 | 2019-09-10 | Automatic pressure regulating system for regulating oil leakage pressure of underwater operation equipment |
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| CN201910850448.5A CN112555234B (en) | 2019-09-10 | 2019-09-10 | Automatic pressure regulating system for regulating oil leakage pressure of underwater operation equipment |
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| US5868167A (en) * | 1995-12-30 | 1999-02-09 | Aisin Aw Co., Ltd. | Pressure regulating valve in a hydraulic control system for an automatic transmission |
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