CN112065791B - Full-working-condition test equipment and test bed for full-sea-depth buoyancy regulating system - Google Patents
Full-working-condition test equipment and test bed for full-sea-depth buoyancy regulating system Download PDFInfo
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- CN112065791B CN112065791B CN202010820158.9A CN202010820158A CN112065791B CN 112065791 B CN112065791 B CN 112065791B CN 202010820158 A CN202010820158 A CN 202010820158A CN 112065791 B CN112065791 B CN 112065791B
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- 238000012360 testing method Methods 0.000 title claims abstract description 82
- 230000001105 regulatory effect Effects 0.000 title claims abstract description 60
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 109
- 239000013535 sea water Substances 0.000 claims abstract description 35
- 238000005260 corrosion Methods 0.000 claims abstract description 5
- 238000001816 cooling Methods 0.000 claims description 13
- 230000001276 controlling effect Effects 0.000 claims description 11
- 239000000110 cooling liquid Substances 0.000 claims description 10
- 238000002347 injection Methods 0.000 claims description 10
- 239000007924 injection Substances 0.000 claims description 10
- 239000007788 liquid Substances 0.000 claims description 10
- 230000008859 change Effects 0.000 claims description 6
- 230000000875 corresponding effect Effects 0.000 claims description 5
- 230000007797 corrosion Effects 0.000 claims description 4
- 230000035515 penetration Effects 0.000 claims description 4
- 238000012544 monitoring process Methods 0.000 claims description 3
- 230000008054 signal transmission Effects 0.000 claims description 3
- 238000004088 simulation Methods 0.000 abstract description 8
- 238000011056 performance test Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 description 7
- 230000000149 penetrating effect Effects 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 239000003921 oil Substances 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 239000008399 tap water Substances 0.000 description 4
- 235000020679 tap water Nutrition 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 238000005086 pumping Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 241000282414 Homo sapiens Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
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- 238000006073 displacement reaction Methods 0.000 description 1
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- 238000011835 investigation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000013575 regulation of buoyancy Effects 0.000 description 1
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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
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
- F15B11/17—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors using two or more pumps
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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
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
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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
- F15B19/00—Testing; Calibrating; Fault detection or monitoring; Simulation or modelling of fluid-pressure systems or apparatus not otherwise provided for
- F15B19/005—Fault detection or monitoring
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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
- F15B19/00—Testing; Calibrating; Fault detection or monitoring; Simulation or modelling of fluid-pressure systems or apparatus not otherwise provided for
- F15B19/007—Simulation or modelling
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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
- F15B21/06—Use of special fluids, e.g. liquid metal; Special adaptations of fluid-pressure systems, or control of elements therefor, to the use of such fluids
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/005—Testing of complete machines, e.g. washing-machines or mobile phones
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- Analytical Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention discloses full-working-condition test equipment and a test bed for a full-sea deep buoyancy regulating system, which are used for performance test of the full-sea deep buoyancy regulating system in a simulated deep sea environment and belong to the field of full-working-condition tests of deep sea equipment. The motor, the seawater pump, the integrated control valve bank and the hydraulic source are placed in the high-pressure cabin of the full-sea deep environment simulation test bed host system, the power supply and the control of the motor and the hydraulic source under the ultrahigh-pressure environment are realized through the watertight connector, the water ballast cabin, the power supply unit and the control unit are placed outside the high-pressure cabin, the water ballast cabin is connected with the valve bank to be tested in the high-pressure cabin, the performances of the buoyancy adjusting system can be tested conveniently and comprehensively outside, matched equipment such as the ultrahigh-pressure-resistant and external-pressure-resistant water ballast cabin, batteries and the like is not needed, the test cost is greatly saved, the test risk is reduced, the performance test is more comprehensive, and the test bed can simulate 11000 m deep-sea ultrahigh-pressure, strong-corrosion and ultralow-temperature environments.
Description
Technical Field
The invention belongs to the field of full-working-condition tests of deep sea equipment, relates to full-working-condition test equipment and a test bed of a full-sea deep buoyancy regulating system, and particularly relates to a full-working-condition test method of the full-sea deep buoyancy regulating system, which can be used for performance tests of the full-sea deep buoyancy regulating system in an ultrahigh external pressure environment.
Background
Marine equipment, especially deep sea equipment, is an important tool for human beings to perform marine resource exploration, scientific investigation, development operation, military detection and operation platform, and a buoyancy adjusting system is often needed to adjust the buoyancy of the deep sea equipment in the submergence and floating processes of the deep sea equipment. Along with the increase of the ocean depth, the external pressure borne by the buoyancy regulating system is higher and higher, the pressure can reach 110MPa under the limit sea depth of 11000 m, and once a fault occurs, huge loss can be caused. In order to reduce the risk of fault occurrence, the deep sea buoyancy regulating system must be subjected to a full-working-condition simulation test in use to verify the safety and reliability of the deep sea buoyancy regulating system.
Because the environmental pressure is up to 110MPa, part of the current detection instruments cannot bear the high external pressure, and therefore the performance of the full sea depth buoyancy regulating system cannot be comprehensively tested. In addition, the existing full-sea deep buoyancy regulating system full-working-condition test method is characterized in that a power supply and a ballast water tank are placed in an ultrahigh pressure environment, the performance of the system cannot be comprehensively tested, the test cost is high, and the risk is high.
To carry out the full operating mode test of full sea deep buoyancy governing system, must use full sea deep environment simulation test bench to simulate deep sea environment, but present test bench generally can only simulate deep sea superhigh pressure environment, and can not simulate deep sea strong corrosion and ultra-low temperature environment, and all adopt hydraulic oil as transmission medium, can produce in the use to the environment leak and fluid still need retrieve, cause environmental pollution use cost higher and pollute serious.
Disclosure of Invention
Aiming at the defects or improvement requirements of the prior art, the invention provides full-working-condition test equipment and a test bed for a full-sea-depth buoyancy regulating system, which can be used for performance test of the full-sea-depth buoyancy regulating system in a simulated deep-sea environment, the simulated depth of the test can reach 11000 meters, the test is more comprehensive and convenient, and the cost of matched equipment is lower.
In order to achieve the above object, according to one aspect of the present invention, there is provided a full condition test apparatus for a full sea depth buoyancy regulating system, for a full condition test of the full sea depth buoyancy regulating system, the full sea depth buoyancy regulating system to be tested includes a motor, a sea water pump and a valve bank to be tested, the valve bank to be tested has an I port and an II port used as a water injection and drainage channel, a flow direction during drainage is from the I port to the II port, and a flow direction during water injection is from the II port to the I port; the full-working-condition test equipment comprises a hydraulic source arranged inside a high-pressure cabin, and a ballast water tank, a flow meter, a liquid level meter, a power supply unit and a control unit which are arranged outside the high-pressure cabin; wherein,
the hydraulic source comprises an oil tank, a hydraulic source motor, a gear pump and a first reversing valve group, wherein an outlet of the oil tank is connected with an inlet of the gear pump, and the hydraulic source motor is connected with the gear pump to drive the gear pump to work; the outlet of the gear pump is connected with the valve bank to be tested through the first reversing valve bank, so that the opening and closing of the valve bank to be tested are controlled by a hydraulic source;
during testing, the valve bank to be tested, the motor and the seawater pump are arranged inside the hyperbaric chamber, the port I of the valve bank to be tested is led out of the hyperbaric chamber through a pipeline and then is connected with the ballast water tank, the port II of the valve bank to be tested is connected with the internal environment of the hyperbaric chamber, a flowmeter is arranged between the ballast water tank and the valve bank to be tested, and a liquid level meter is arranged inside the ballast water tank;
the outlet and the inlet of the seawater pump to be tested are connected into the valve bank to be tested, and the motor is connected with the seawater pump to drive the seawater pump to work;
the power supply unit is used for supplying power to the motor and the hydraulic source motor; the control unit is used for controlling the work of the motor and the hydraulic source motor.
In order to achieve the above object, according to another aspect of the present invention, there is provided an all-condition test stand for an all-sea deep buoyancy regulating system, comprising a main machine system, a pressurizing unit, a pressure relief unit, a driving unit, a temperature control unit, and an electrical control unit, wherein:
the host system comprises a high-pressure cabin, a bearing frame, a cabin cover control hydraulic cylinder and a frame moving hydraulic cylinder; a piston rod of the cabin cover operating hydraulic cylinder is connected with a cabin cover of the high-pressure cabin to operate the opening and closing of the cabin cover, and a piston rod of the rack moving hydraulic cylinder is connected with the force bearing rack to drive the force bearing rack to translate between a working position and a non-working position; when the bearing frame is positioned at the working position, the bearing frame is used for bearing the axial pressure of the high-pressure cabin; the hatch cover operation hydraulic cylinder and the rack moving hydraulic cylinder are connected with the driving unit so as to execute corresponding actions under the control of the driving unit;
the cooling pipeline, the heat preservation layer and the outer cover are sequentially arranged on the outer side of the high-pressure cabin from the inner layer to the outer layer, circulating cooling liquid is introduced into the cooling pipeline, and an inlet and an outlet of the cooling pipeline are connected with the temperature control unit and used for controlling the temperature inside the high-pressure cabin so as to simulate the deep sea temperature;
the pressurizing unit is used for gradually pressurizing the high-pressure cabin so as to simulate the pressure change when the deep sea equipment submerges;
the pressure relief unit is used for gradually relieving pressure of the high-pressure cabin so as to simulate pressure change borne by the deep sea equipment during floating;
the electric control unit is used for controlling the working states of the pressurizing unit, the pressure relief unit, the driving unit and the temperature control unit.
Further, the pressurizing unit comprises a pre-pressurizing pump station and an ultrahigh pressure pump station;
the pre-pressurizing pump station comprises a centrifugal pump, a pre-pressurizing motor, a pressure regulating valve, a first one-way valve and a pressure gauge; the pre-pressurizing motor drives the centrifugal pump to work, the outlet of the centrifugal pump is connected with the pressurizing port of the high-pressure cabin through a first one-way valve, and the centrifugal pump is connected with a pressure regulating valve in parallel and used for regulating the output pressure of the centrifugal pump; the pressure gauge is used for monitoring the outlet pressure of the centrifugal pump; the pre-pressurizing pump station is used for filling water into the high-pressure cabin;
the ultrahigh pressure pump station comprises an ultrahigh pressure servo motor, an ultrahigh pressure variable frequency water pump, a safety valve and a second one-way valve; the ultrahigh pressure servo motor drives the ultrahigh pressure variable frequency water pump to work to pressurize the hyperbaric chamber, the outlet of the ultrahigh pressure variable frequency water pump is connected with the pressurizing port of the hyperbaric chamber through the second one-way valve, and the ultrahigh pressure variable frequency water pump is connected with the safety valve in parallel and is used for preventing the pressure in the hyperbaric chamber from exceeding the designed pressure-resistant limit of the hyperbaric chamber.
Further, the pressure relief unit comprises a pressure relief servo motor, a variable frequency water pump and a balance valve; the inlet of the variable frequency water pump is connected with a pressure relief port of the hyperbaric chamber, and the pressure relief servo motor drives the variable frequency water pump to perform pressure relief on the hyperbaric chamber.
Furthermore, the driving unit comprises a plunger water pump, a driving motor, a pressure regulating valve, a third one-way valve, a pressure gauge, a rack three-position four-way reversing valve and a hatch cover three-position four-way reversing valve; the outlet of the plunger water pump is connected with a rack three-position four-way reversing valve and a P port of a hatch cover three-position four-way reversing valve, an A port and a B port of the rack three-position four-way reversing valve are respectively connected with a rod cavity and a rodless cavity of a rack mobile hydraulic cylinder, and an A port and a B port of the hatch cover three-position four-way electromagnetic reversing valve are respectively connected with a rodless cavity and a rod cavity of a hatch cover operating hydraulic cylinder; and the driving unit takes tap water as a working medium.
Further, the temperature control unit comprises a refrigerating unit and a circulating pump station, when the temperature in the high-pressure cabin exceeds a set temperature and reaches a preset value, the circulating pump station starts to work to drive circulating cooling liquid in the cooling pipeline to circulate, and the temperature in the high-pressure cabin is reduced through heat exchange between the refrigerating unit and the circulating cooling liquid.
Further, the high-pressure cabin and the ballast water cabin use seawater as a working medium, so that a strong corrosion environment of the ocean is simulated.
Furthermore, a water channel interface and a plurality of watertight cabin penetrating piece interfaces are arranged on the upper end cover and the lower end cover of the high-pressure cabin, the water channel interface is used for connecting the ballast water cabin, and the watertight cabin penetrating piece interfaces are used as power supply interfaces or signal transmission interfaces to be respectively connected with each electric control device in the high-pressure cabin; and the high-pressure cabin is also internally provided with an illuminating lamp and a camera with a holder.
Further, the temperature in the high-pressure cabin is adjusted within the range of 1-20 ℃ to simulate the deep-sea ultralow-temperature environment; the pressure relief speed and the pressure increase speed of the high-pressure cabin are adjusted within the range of 0.1MPa/min-6MPa/min, so that the floating speed and the submergence speed of the simulated deep sea equipment are 10m/min-600m/min correspondingly.
Further, the full-sea-depth buoyancy regulating system full-working-condition test bed comprises the full-working-condition test equipment.
In general, compared with the prior art, the above technical solution contemplated by the present invention can obtain the following beneficial effects:
1) the full-sea deep buoyancy regulating system can be used for buoyancy regulation in the submergence and floating processes of deep-sea equipment, the maximum working depth is 11000 m, the corresponding environmental pressure is about 110MPa, and the performance of the buoyancy regulating system cannot be comprehensively tested in the ultrahigh-pressure environment. According to the test equipment provided by the invention, the ballast water tank, the power supply unit, the control unit and the test instrument are arranged outside the high-pressure tank, and matched equipment such as the ballast water tank and a battery which are resistant to ultrahigh external pressure is not needed, so that the test cost is greatly saved, the test risk is reduced, and the performance test is more comprehensive.
2) The test bed can simulate the deep sea ultrahigh pressure and ultralow temperature environment, and in addition, the environment in the high pressure cabin and the working medium of the ultrahigh pressure pump station can also simulate the deep sea strong corrosion environment by replacing the working medium with seawater, so that the performance of the full sea deep buoyancy regulating system tested by the test bed is closer to the real condition, and the sea test risk of deep sea equipment can be reduced.
3) The driving unit of the test bed adopts tap water as a transmission medium, is clean and environment-friendly, has good maintainability, and greatly reduces the test cost.
4) Considering that different deep sea equipment submerge and float at different speeds, the test bed can test the performance of the full-sea deep buoyancy regulating system at different lifting and pressure relief speeds, and meets the requirements of various deep sea equipment on descending and floating speeds.
5) The high-pressure cabin is internally provided with an illuminating lamp and a camera with a holder, so that the working state of the full sea depth buoyancy adjusting system can be monitored in real time.
Drawings
FIG. 1 is a schematic diagram of the full-sea-depth buoyancy regulating system full-condition test equipment of the invention.
Fig. 2 is a schematic diagram of a full-sea deep environment simulation test bed used in the preferred embodiment of the present invention.
Figure 3 shows a schematic cross-sectional view of a hyperbaric chamber.
The same reference numbers will be used throughout the drawings to refer to the same or like elements or structures, wherein:
1-motor, 2-sea water pump, 3.1-3.5-first-fifth ultrahigh pressure hydraulic control stop valve, 4-balance valve, 5-filter, 6-oil tank, 7-hydraulic source motor, 8-gear pump, 9.1-9.3-first-third three-position four-way reversing valve, 10-high pressure cabin, 11-frame, 12-cabin cover control hydraulic cylinder, 13-frame moving hydraulic cylinder, 14-pre-pressurizing pump station, 14.1-centrifugal pump, 14.2-pre-pressurizing motor, 14.3-filter, 14.4-pressure regulating valve, 14.5-first one-way valve, 14.6-pressure gauge, 15-ultrahigh pressure pump station, 15.1-ultrahigh pressure servo motor, 15.2-ultrahigh pressure variable frequency water pump, 15.3-filter, 15.4-safety valve, 15.5-second one-way valve, 16-pressure relief unit, 16.1-a pressure relief servo motor, 16.2-a variable frequency water pump, 16.3-a balance valve, 17-a driving unit, 17.1-a plunger water pump, 17.2-a driving motor, 17.3-a pressure regulating valve, 17.4-a filter, 17.5-a third one-way valve, 17.6-a pressure gauge, 17.7-a rack three-position four-way reversing valve, 17.8-a cabin cover three-position four-way reversing valve, 18-a cooling pipeline, 19-a heat insulation layer, 20-an outer cover, 21-a waterway interface, 22.1-22.3-first-third watertight cabin penetrating piece interfaces, 23-a lighting lamp and 24-a camera.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
A full-working-condition test device of a full-sea-depth buoyancy regulating system is shown in a principle in figure 1, and a hydraulic source, a filter 5, a motor 1 to be tested, a sea water pump 2 and a valve bank are placed in a high-pressure cabin 10 of a pure-water-driven full-sea-depth environment simulation test bed host system. Preferably, the valve set to be tested adopted in the present embodiment is a full-sea deep buoyancy regulating integrated valve set (hereinafter, referred to as an integrated control valve set) in CN 107676315A. The integrated control valve group comprises 5 ultrahigh pressure hydraulic control stop valves 3.1-3.5 and a balance valve 4, wherein each valve is integrated in one valve body and communicated through a flow passage in the valve body; the hydraulic source comprises an oil tank 6, a hydraulic source motor 7, a gear pump 8 and three-position four-way reversing valves 9.1-9.3, wherein the oil tank 6 adopts a sea depth self-adaptive compensation design, the internal pressure is always kept balanced with the environmental pressure, and the gear pump 8 is connected with the valves 9.1-9.3 and the hydraulic source is connected with the integrated control valve group through pipelines; the water ballast tank, the flowmeter, the liquid level meter, the power supply unit and the control unit are placed outside the high-pressure tank, a water way of the integrated control valve group in the high-pressure tank is led out by a hard pipe to be connected with the water ballast tank, the flowmeter is installed between the water ballast tank and the integrated control valve group, the liquid level meter is installed inside the water ballast tank, and the power supply, control and electric signal feedback of the motor 1 and the hydraulic source under the ultrahigh-pressure environment are realized through watertight connectors installed on the upper end cover and the lower end cover of the high-pressure tank.
Wherein, a high pressure cabin is led out from a port I between the stop valve 3.3 and the stop valve 3.4 and is connected with a ballast water tank, a flowmeter is arranged between the ballast water tank and the integrated control valve bank, a liquid level meter is arranged inside the ballast water tank, and a port II between the stop valve 3.2 and the stop valve 3.5 is directly communicated with the simulated deep sea environment in the high pressure tank through a filter 5; the outlet of the gear pump 8 is connected with P ports of three-position four-way reversing valves 9.1-9.3, the B port of the three-position four-way reversing valve 9.1 is communicated with the control port of the stop valve 3.1, A, B ports of the three-position four-way reversing valve 9.2 are respectively communicated with the control ports of the stop valve 3.5 and the stop valve 3.2, A, B ports of the three-position four-way reversing valve 9.3 are respectively communicated with the control ports of the stop valve 3.3 and the stop valve 3.4, and the opening and closing of 5 high-pressure hydraulic control stop valves 3.1-3.5 are controlled through a hydraulic source.
The working principle of the full-working-condition test equipment is as follows: when a test is started, the full-sea-depth buoyancy regulating system is installed according to the arrangement mode of the test equipment, the pressurizing unit of the full-sea-depth environment simulation test bed is driven by pure water to pressurize the interior of the hyperbaric chamber to a required pressure, the temperature in the hyperbaric chamber is controlled to reach a required temperature through the temperature control unit, and the operation of the hydraulic source is controlled through the external power supply unit and the external control unit, so that the opening and closing of the five hydraulic control stop valves 3.1-3.5 can be controlled; the method comprises the steps of firstly opening a stop valve 3.1, starting a sea water pump motor 1 to control a sea water pump 2 to start in a no-load mode, then opening stop valves 3.3 and 3.5 to test a water injection function from a deep sea environment to a ballast water tank, then closing the stop valves 3.3 and 3.5, opening the stop valves 3.2 and 3.4 to test a water drainage function from the ballast water tank to the deep sea environment, testing the water injection and drainage flow of a system through a flow meter outside a high pressure tank, and testing parameters such as the power of the system, the rotating speed of the sea water pump and the like through an electric signal of a power supply unit. When the ballast tank discharges water to the hyperbaric chamber 10, the flow direction is from port I to port ii, and when the hyperbaric chamber 10 is filled with water, the flow direction is from port ii to port I.
The test stand of the present invention is described below. As shown in fig. 2 and 3, the preferred full-condition test bed for the full-sea deep buoyancy regulating system of the present invention comprises a host system, a pressurizing unit, a pressure relief unit, a driving unit, a temperature control unit and an electrical control unit, wherein:
the host system comprises a high-pressure cabin 10, a bearing frame 11, a cabin cover control hydraulic cylinder 12 and a frame moving hydraulic cylinder 13; a piston rod of the cabin cover operating hydraulic cylinder 12 is connected with a cabin cover of the high-pressure cabin 10 to operate the opening and closing of the cabin cover, and a piston rod of the rack moving hydraulic cylinder 13 is connected with the bearing rack 11 to drive the bearing rack 11 to translate between a working position and a non-working position; when the force bearing frame 11 is positioned at the working position, the force bearing frame is used for bearing the axial pressure of the high-pressure cabin 10; the hatch operating cylinders 12 and the frame displacement cylinders 13 are connected to the drive unit to perform corresponding actions under the control of the drive unit.
The cooling pipeline 18, the heat preservation layer 19 and the outer cover 20 are arranged in sequence from the inner layer to the outer layer on the outer side of the high-pressure cabin 10, circulating cooling liquid is led into the cooling pipeline 18, and an inlet and an outlet of the circulating cooling liquid are connected with the temperature control unit and used for controlling the temperature of the high-pressure cabin 10 so as to simulate the deep sea temperature.
The pressurizing unit is used for gradually pressurizing the high-pressure cabin 10 so as to simulate the pressure change when the deep sea equipment submerges; the pressure relief unit is used for gradually relieving pressure of the high-pressure cabin 10 so as to simulate pressure change when the deep sea equipment floats; the electric control unit is used for controlling the working states of the pressurizing unit, the pressure relief unit, the driving unit and the temperature control unit.
The pressurizing unit comprises pre-pressurizing pumping stations 14 and ultra-high-pressurizing pumping stations 15. The pre-pressurizing pump station comprises a centrifugal pump 14.1, a pre-pressurizing motor 14.2, a pressure regulating valve 14.4, a first one-way valve 14.5 and a pressure gauge 14.6; the pre-pressurizing motor 14.2 drives the centrifugal pump 14.1 to work, the outlet of the centrifugal pump 14.1 is connected with the pressurizing port of the high-pressure cabin 10 through a first one-way valve 14.5, and the centrifugal pump 14.1 is connected with a pressure regulating valve 14.4 in parallel and is used for regulating the output pressure of the centrifugal pump 14.1; the pressure gauge 14.6 is used for monitoring the outlet pressure of the centrifugal pump 14.1; because of the large internal volume of the hyperbaric chamber 10, it is necessary to fill the hyperbaric chamber 10 with water using a pre-pressurizing pumping station.
The ultrahigh pressure pump station comprises an ultrahigh pressure servo motor 15.1, an ultrahigh pressure variable frequency water pump 15.2, a safety valve 15.4 and a second one-way valve 15.5; the ultrahigh pressure servo motor 15.1 drives the ultrahigh pressure variable frequency water pump 15.2 to work to pressurize the high pressure cabin 10, the outlet of the ultrahigh pressure variable frequency water pump 15.2 is connected with the pressurizing port of the high pressure cabin 10 through the second one-way valve 15.5, and the ultrahigh pressure variable frequency water pump 15.2 is connected with the safety valve 15.4 in parallel and is used for preventing the pressure in the high pressure cabin 10 from exceeding the designed pressure-resistant limit of the high pressure cabin 10. The rotating speed of the ultrahigh-pressure servo motor 15.1 can be adjusted in real time according to the set pressurizing speed and the pressure in the high-pressure cabin 10, so that the output flow of the ultrahigh-pressure variable-frequency water pump 15.2 is controlled, the set pressurizing speed is realized, and the first check valve 14.5 and the second check valve 15.5 can prevent high-pressure seawater in the high-pressure cabin from flowing backwards.
The pressure relief unit 16 comprises a pressure relief servo motor 16.1, a variable frequency water pump 16.2 and a balance valve 16.3; the inlet of the variable frequency water pump 16.2 is connected with the pressure relief port of the high-pressure cabin 10, and the pressure relief servo motor 16.1 drives the variable frequency water pump 16.2 to work to relieve pressure of the high-pressure cabin 10. The inlet of the variable frequency water pump 16.2 is connected with the high-pressure cabin, and the rotating speed of the pressure relief servo motor 16.1 can be adjusted in real time according to the set pressure relief speed and the pressure in the high-pressure cabin 10, so that the output flow of the variable frequency water pump 16.2 is controlled, and the set pressure relief speed is realized. The working medium of the ultrahigh pressure pump station is seawater.
The driving unit 17 comprises a plunger water pump 17.1, a driving motor 17.2, a pressure regulating valve 17.3, a third one-way valve 17.5, a pressure gauge 17.6, a rack three-position four-way reversing valve 17.7 and a hatch cover three-position four-way reversing valve 17.8; an outlet of a plunger water pump 17.1 is connected with a rack three-position four-way reversing valve 17.7 and a P port of a hatch cover three-position four-way reversing valve 17.8, an A port and a B port of the rack three-position four-way reversing valve 17.7 are respectively connected with a rod cavity and a rodless cavity of a rack mobile hydraulic cylinder 13, and an A port and a B port of the hatch cover three-position four-way electromagnetic reversing valve 17.8 are respectively connected with a rodless cavity and a rod cavity of a hatch cover control hydraulic cylinder 12; and the frame three-position four-way reversing valve 17.7 and the hatch cover three-position four-way reversing valve 17.8 return at an O port.
Preferably, all the three-position four-way reversing valves in the embodiment are electromagnetic reversing valves, and when the electromagnet on the left side is electrified, the valve core is located at the left position, when the electromagnet on the right side is electrified, the valve core is located at the right position, and when the electromagnets on the two sides are not electrified, the valve core is located at the middle position. When the electromagnet on the left side of the rack three-position four-way reversing valve 17.7 is electrified, high-pressure water at the outlet of the plunger pump 17.1 enters a rod cavity of the rack moving hydraulic cylinder 13, the control rack 11 moves rightwards, the upper end cover and the lower end cover of the hyperbaric chamber are clamped in the middle, the electromagnet on the right side of the rack three-position four-way reversing valve 17.7 is electrified, the high-pressure water at the outlet of the plunger pump 17.1 enters a rodless cavity of the rack moving hydraulic cylinder 13, the control rack 11 moves leftwards, and at the moment, the hyperbaric chamber can be opened; when the electromagnet on the left side of the three-position four-way reversing valve 17.8 is electrified, high-pressure water at the outlet of the plunger water pump 17.1 enters the rodless cavity of the cabin cover operating hydraulic cylinder 12 to control the opening of the upper end cover of the hyperbaric cabin 10, when the electromagnet on the right side of the three-position four-way reversing valve 17.8 of the cabin cover is electrified, high-pressure water at the outlet of the plunger water pump 17.1 enters the rod cavity of the cabin cover operating hydraulic cylinder 12 to control the closing of the upper end cover of the hyperbaric cabin 10, and the working process of moving the rack 11 out, opening the upper end cover, loading the test equipment, closing the upper end cover and moving the rack 11 in can be realized by designing the electrifying sequence of the electromagnets. Preferably, tap water is used as the transmission medium for the entire host system and the drive unit. For other types of three-position four-way reversing valves, the control process is the same as above, and the same effect can be achieved as long as the movement direction of the valve core is controlled according to the movement direction.
The temperature control unit comprises a refrigerating unit and a circulating pump station, when the temperature in the high-pressure cabin 10 exceeds a set temperature and reaches a preset value, the circulating pump station starts to work to drive circulating cooling liquid in the cooling pipeline 18 to circulate, and the temperature in the high-pressure cabin 10 is reduced through heat exchange between the refrigerating unit and the circulating cooling liquid.
The high-pressure ballast 10 and the ballast water tank use seawater as a working medium, thereby simulating a strong corrosive environment of the ocean.
The upper end cover and the lower end cover of the high-pressure cabin 10 are provided with a water channel interface 21 and a plurality of watertight cabin penetrating piece interfaces, the water channel interface 21 is used for connecting a ballast water cabin, and the watertight cabin penetrating piece interfaces are used as power supply interfaces or signal transmission structures to be respectively connected with each electric control device in the high-pressure cabin 10; the hyperbaric chamber 10 is also provided with an illumination lamp 23 and a camera 24 with a cloud platform.
The temperature in the hyperbaric chamber 10 is regulated within the range of 1 ℃ to 20 ℃ to simulate a deep sea ultra low temperature environment; the pressure relief speed and the pressure increase speed of the high-pressure cabin 10 are adjusted within the range of 0.1MPa/min-6MPa/min, so that the submergence and floating speeds of the simulated deep sea equipment are 10m/min-600m/min correspondingly.
Preferably, the pressurizing unit and the pressure relief unit of the all-condition test bed of the all-sea deep buoyancy regulating system preferably adopt a mode that a servo motor controls a variable frequency water pump, and can accurately control the output flow of the water pump, so that the pressure in the high-pressure cabin 10 can be accurately controlled to be pressurized and relieved at a set speed.
Preferably, the moving in and out of the frame and the opening and closing of the hatch cover are controlled by a driving unit 17 of the full-sea-depth environment simulation test bed before and after the full-sea-depth buoyancy regulating system full-condition test is started and finished, and a transmission medium used by the system is tap water.
Preferably, before the test is started, the full sea depth buoyancy regulating system in the high-pressure cabin is connected with an external ballast water tank through a water path interface 21 arranged on an upper end cover of the high-pressure cabin, and watertight penetration pieces are arranged through penetration piece interfaces 22.1-22.3 arranged on an upper end cover and a lower end cover of the high-pressure cabin, so that power supply, control and electric signal feedback of a motor in the high-pressure cabin 10 are realized, and performance data of the full sea depth buoyancy regulating system can be tested more conveniently outside.
Preferably, during the test, the working state of the full sea depth buoyancy regulating system in the hyperbaric chamber can be monitored in real time through the illuminating lamp 23 and the camera 24 which are installed in the hyperbaric chamber.
Preferably, the cooling pipes 18 and the insulation 19 around the outside of the hyperbaric chamber 10 cooperate with a temperature control unit to precisely control the seawater in the hyperbaric chamber 10 to a desired temperature.
The working principle and the testing process of the test bench of the invention are described in detail below with reference to fig. 1-3.
As shown in fig. 1-3, before the test, the full sea depth buoyancy regulating system is connected and installed in the hyperbaric chamber 10 according to the test principle diagram of fig. 1, then the plunger water pump 17.1 is controlled to work by the electric control unit, the right electromagnet of the hatch cover three-position four-way reversing valve 17.8 is controlled to be electrified, and high-pressure water enters the hatch cover to operate the rod cavity of the hydraulic cylinder 12, so that the hyperbaric chamber 10 is closed; then the left electromagnet of the frame control three-position four-way reversing valve 17.7 is electrified, high-pressure water enters the rod cavity of the frame moving hydraulic cylinder 13, so that the frame 11 moves to the outer side of the high-pressure cabin 10, and the axial force in the high-pressure cabin 10 is born by the frame 11.
When the test is started, firstly, according to the working depth and the submerging and surfacing speeds of the buoyancy regulating system to be tested, working pressure, working water temperature and pressurizing and depressurizing speeds are set on an upper computer in the electric control unit, and the electric control unit controls the work of the corresponding unit according to the set data; then starting a pre-pressurizing pump station 14 to quickly fill water into the high-pressure cabin 10, closing the pre-pressurizing pump station after the water is filled, starting the ultrahigh-pressure pump station 15, and automatically adjusting the rotating speed of a pressurizing servo motor 15.2 according to the set pressurizing speed so as to control the flow output by the variable-frequency water pump 15.1; the temperature control system is simultaneously turned on during pressurization until the temperature and pressure within the hyperbaric chamber 10 reach set values.
During the test, the temperature and pressure inside the hyperbaric chamber 10 are maintained constant by the temperature control unit and the pressurization unit; then, an external power supply unit and a control unit are turned on, and a hydraulic source motor 7 and a gear pump 8 are controlled to start working through watertight cabin penetrating pieces arranged on the upper end cover and the lower end cover, so that the five hydraulic control stop valves 3.1-3.5 can be controlled to be opened and closed, for example:
firstly, controlling an electromagnet on the right side of a first three-position four-way reversing valve 9.1 to be electrified, opening a first ultrahigh pressure hydraulic control stop valve 3.1, and starting a seawater pump motor 1 to control a seawater pump 2 to start in a no-load manner; then, controlling the electromagnet on the left side of the third three-position four-way reversing valve 9.3 and the electromagnet on the left side of the second three-position four-way reversing valve 9.2 to be electrified, and opening the third ultrahigh pressure hydraulic control stop valve 3.3 and the fifth ultrahigh pressure hydraulic control stop valve 3.5; then, close first superhigh pressure liquid accuse stop valve 3.1, the sea water in the hyperbaric chamber passes through filter 5 and gets into II mouths of integrated valves, and rethread fifth superhigh pressure liquid accuse stop valve 3.5 gets into the entry of sea water pump 2, and the sea water through sea water pump 2 passes through balanced valve 4 and third superhigh pressure liquid accuse stop valve 3.3 and gets into I mouth of integrated valves, then gets into the ballast water tank through waterway interface 21 on the hyperbaric chamber upper end cover, so alright test from the deep sea environment to the water injection function in ballast water tank.
After the water injection function test is finished, controlling the electromagnet on the left side of the third three-position four-way reversing valve 9.3 and the electromagnet on the left side of the second three-position four-way reversing valve 9.2 to lose power, and closing the third ultrahigh pressure hydraulic control stop valve 3.3 and the fifth ultrahigh pressure hydraulic control stop valve 3.5 under the action of spring force; then the electromagnet on the right side of the second three-position four-way reversing valve 9.2 and the electromagnet on the right side of the third three-position four-way reversing valve 9.3 are controlled to be powered on, the second ultrahigh pressure hydraulic control stop valve 3.2 and the fourth ultrahigh pressure hydraulic control stop valve 3.4 are opened, at the moment, seawater in the ballast water tank enters the I port of the integrated valve bank through a waterway interface 21 on the upper end cover of the high-pressure cabin 10, then enters the inlet of the seawater pump 2 through the stop valve 3.4, seawater passing through the seawater pump 2 enters the II port of the integrated valve bank through the balance valve 4 and the stop valve 3.2, and then flows into the high-pressure cabin 10 through the filter 5, so that the drainage function from the ballast water tank to the deep sea environment can be tested.
In the water injection and drainage process, the flow rate of water injection and drainage of the system is tested through a flowmeter outside the high-pressure cabin, and parameters such as the power of the system, the rotating speed of the seawater pump and the like are tested through an electric signal of a power supply unit.
After all the performance tests are finished, the hydraulic source motor 7 and the sea water pump motor 1 are closed, then the pressure relief unit 16 of the full-sea deep environment simulation test bed is opened, the pressure relief servo motor 16.1 can automatically adjust the rotating speed according to the set pressure relief speed, so that the output flow of the variable frequency water pump 16.2 is controlled, and the pressure in the high-pressure cabin 10 is relieved at the set speed. After the pressure in the high-pressure cabin 10 is reduced to zero pressure, a plunger water pump 17.1 in a driving unit 17 is started, a right electromagnet of a rack three-position four-way reversing valve 17.7 is controlled to be electrified, high-pressure water enters a rodless cavity of a rack moving hydraulic cylinder 13 to move the rack 11 out, then a left electromagnet of a cabin cover three-position four-way reversing valve 17.8 is controlled to be electrified, the high-pressure water enters a rodless cavity of a cabin cover operating hydraulic cylinder 12 to open the high-pressure cabin 10, a pipeline and a circuit are disassembled, the full sea depth buoyancy regulating system is taken out, and the test is completed.
It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the invention, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (7)
1. The utility model provides a full operating mode test bench of full sea depth buoyancy governing system which characterized in that, includes host system, pressurization unit, release unit, drive unit, temperature control unit and electrical control unit, wherein:
the host system comprises a high-pressure cabin (10), a bearing frame (11), a cabin cover control hydraulic cylinder (12) and a frame moving hydraulic cylinder (13); a piston rod of the cabin cover operating hydraulic cylinder (12) is connected with a cabin cover of the high-pressure cabin (10) to operate the opening and closing of the cabin cover, and a piston rod of the rack moving hydraulic cylinder (13) is connected with the bearing rack (11) to drive the bearing rack (11) to translate between a working position and a non-working position; when the force bearing frame (11) is positioned at the working position, the force bearing frame is used for bearing the axial pressure of the high-pressure cabin (10); the hatch cover operation hydraulic cylinder (12) and the frame moving hydraulic cylinder (13) are connected with the driving unit so as to execute corresponding actions under the control of the driving unit;
a cooling pipeline (18), a heat-insulating layer (19) and an outer cover (20) are sequentially arranged on the outer side of the high-pressure cabin (10) from the inner layer to the outer layer, circulating cooling liquid is introduced into the cooling pipeline (18), and an inlet and an outlet of the cooling pipeline are connected with a temperature control unit and used for controlling the temperature of the high-pressure cabin (10) so as to simulate the deep sea temperature;
the pressurizing unit is used for gradually pressurizing the high-pressure cabin (10) so as to simulate the pressure change when the deep sea equipment is submerged;
the pressure relief unit is used for gradually relieving the pressure of the high-pressure cabin (10) so as to simulate the pressure change when the deep sea equipment floats;
the electric control unit is used for controlling the working states of the pressurizing unit, the pressure relief unit, the driving unit and the temperature control unit;
the driving unit (17) comprises a plunger water pump (17.1), a driving motor (17.2), a pressure regulating valve (17.3), a third one-way valve (17.5), a pressure gauge (17.6), a rack three-position four-way reversing valve (17.7) and a hatch cover three-position four-way reversing valve (17.8); an outlet of a plunger water pump (17.1) is connected with a rack three-position four-way reversing valve (17.7) and a P port of a hatch cover three-position four-way reversing valve (17.8), an A port and a B port of the rack three-position four-way reversing valve (17.7) are respectively connected with a rod cavity and a rodless cavity of a rack mobile hydraulic cylinder (13), and an A port and a B port of the hatch cover three-position four-way electromagnetic reversing valve (17.8) are respectively connected with a rodless cavity and a rod cavity of a hatch cover control hydraulic cylinder (12); the O ports of the rack three-position four-way reversing valve (17.7) and the hatch cover three-position four-way reversing valve (17.8) are refluxed;
the pressure relief unit (16) comprises a pressure relief servo motor (16.1), a variable frequency water pump (16.2) and a balance valve (16.3); an inlet of the variable frequency water pump (16.2) is connected with a pressure relief port of the high-pressure cabin (10), and the pressure relief servo motor (16.1) drives the variable frequency water pump (16.2) to work to relieve pressure of the high-pressure cabin (10); the outlet of the variable frequency water pump (16.2) is connected with the inlet of the balance valve (16.3).
2. The full-sea deep buoyancy regulating system full-condition test bed according to claim 1, wherein the pressurizing unit comprises a pre-pressurizing pump station (14) and an ultra-high pressure pump station (15);
the pre-pressurizing pump station comprises a centrifugal pump (14.1), a pre-pressurizing motor (14.2), a pressure regulating valve (14.4), a first one-way valve (14.5) and a pressure gauge (14.6); the pre-pressurizing motor (14.2) drives the centrifugal pump (14.1) to work, the outlet of the centrifugal pump (14.1) is connected with the pressurizing port of the high-pressure chamber (10) through the first one-way valve (14.5), and the centrifugal pump (14.1) is connected with the pressure regulating valve (14.4) in parallel and used for regulating the output pressure of the centrifugal pump (14.1); the pressure gauge (14.6) is used for monitoring the outlet pressure of the centrifugal pump (14.1); the pre-pressurizing pump station is used for filling water into the high-pressure cabin (10);
the ultrahigh pressure pump station comprises an ultrahigh pressure servo motor (15.1), an ultrahigh pressure variable frequency water pump (15.2), a safety valve (15.4) and a second one-way valve (15.5); the ultrahigh pressure servo motor (15.1) drives the ultrahigh pressure variable frequency water pump (15.2) to work to pressurize the hyperbaric chamber (10), the outlet of the ultrahigh pressure variable frequency water pump (15.2) is connected with the pressurizing port of the hyperbaric chamber (10) through a second one-way valve (15.5), and the ultrahigh pressure variable frequency water pump (15.2) is connected with a safety valve (15.4) in parallel and is used for preventing the pressure in the hyperbaric chamber (10) from exceeding the designed pressure-resistant limit of the hyperbaric chamber (10).
3. The full-sea deep-buoyancy regulating system full-condition test bed according to claim 1, wherein the temperature control unit comprises a refrigerating unit and a circulating pump station, when the temperature in the high-pressure cabin (10) exceeds a preset temperature and reaches a preset value, the circulating pump station starts to work to drive circulating cooling liquid in the cooling pipeline (18) to circulate, and the temperature in the high-pressure cabin (10) is reduced through heat exchange between the refrigerating unit and the circulating cooling liquid.
4. The all-condition test bed of the all-sea deep buoyancy regulating system according to claim 1, wherein the high-pressure ballast (10) and the ballast water tank use seawater as a working medium, thereby simulating a marine strong corrosion environment.
5. The all-condition test bed of the all-sea deep buoyancy regulating system according to claim 1, wherein the upper end cover and the lower end cover of the high-pressure cabin (10) are provided with a water path interface (21) and a plurality of watertight penetration piece interfaces, the water path interface (21) is used for connecting a ballast water tank, and the watertight penetration piece interfaces are used as power supply interfaces or signal transmission structures and are respectively connected with each electric control device in the high-pressure cabin (10); the high-pressure cabin (10) is also internally provided with an illuminating lamp (23) and a camera (24) with a tripod head.
6. The all-condition test bed of the all-sea deep buoyancy regulating system according to claim 1, wherein the temperature in the hyperbaric chamber (10) is regulated within the range of 1-20 ℃ to simulate deep-sea ultra-low temperature environment; the pressure relief speed and the pressure increase speed of the high-pressure cabin (10) are adjusted within the range of 0.1MPa/min-6MPa/min, so that the submergence and floatation speeds of the simulated deep sea equipment are 10m/min-600m/min correspondingly.
7. The full-working-condition test bed of the full-sea deep buoyancy regulating system according to any one of claims 1 to 6, characterized by comprising full-working-condition test equipment for full-working-condition test of the full-sea deep buoyancy regulating system, wherein the full-sea deep buoyancy regulating system comprises a motor (1), a sea water pump (2) and a valve bank to be tested, the valve bank to be tested is provided with an I port and an II port which are used as water injection and drainage channels, the flow direction during drainage is from the I port to the II port, and the flow direction during water injection is from the II port to the I port;
the full-working-condition test equipment comprises a high-pressure cabin (10), a hydraulic source arranged inside the high-pressure cabin (10), a ballast water tank arranged outside the high-pressure cabin (10), a flowmeter, a liquid level meter, a power supply unit and a control unit; wherein,
the hydraulic source comprises an oil tank (6), a hydraulic source motor (7), a gear pump (8) and a first reversing valve group, wherein an outlet of the oil tank (6) is connected with an inlet of the gear pump (8), and the hydraulic source motor (7) is connected with the gear pump (8) to drive the gear pump (8) to work; an outlet of the gear pump (8) is connected with the valve bank to be tested through a first reversing valve bank, so that the opening and closing of the valve bank to be tested are controlled by a hydraulic source;
during testing, the valve bank to be tested, the motor (1) and the seawater pump (2) are arranged inside the hyperbaric chamber (10), an I port of the valve bank to be tested is led out of the hyperbaric chamber (10) through a pipeline and then is connected with the ballast water tank, an II port of the valve bank to be tested is connected with the internal environment of the hyperbaric chamber, a flowmeter is arranged between the ballast water tank and the valve bank to be tested, and a liquid level meter is arranged inside the ballast water tank;
the outlet and the inlet of the seawater pump (2) are connected into the valve bank to be tested, and the motor (1) is connected with the seawater pump (2) to drive the seawater pump (2) to work;
the power supply unit is used for supplying power to the motor (1) and the hydraulic source motor (7); the control unit is used for controlling the work of the motor and the hydraulic source motor (7).
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| CN112746950A (en) * | 2020-12-21 | 2021-05-04 | 中国船舶重工集团有限公司第七一0研究所 | Performance testing device and testing method for seawater pump |
| CN112879366B (en) * | 2020-12-31 | 2022-02-15 | 华中科技大学 | Multifunctional full-sea-depth electric control integrated valve set |
| CN113253021B (en) * | 2021-04-30 | 2022-06-07 | 西安交通大学 | Battery testing device and method for simulating ocean low temperature and water flow |
| CN114659900B (en) * | 2022-04-06 | 2023-05-23 | 中国船舶科学研究中心 | Pressure test device for simulating ten-thousand-meter deep sea submerged floating process and operation method |
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