CN112032137A - SCM hydraulic system with high reliability and built-in redundancy function - Google Patents

SCM hydraulic system with high reliability and built-in redundancy function Download PDF

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Publication number
CN112032137A
CN112032137A CN202011083483.8A CN202011083483A CN112032137A CN 112032137 A CN112032137 A CN 112032137A CN 202011083483 A CN202011083483 A CN 202011083483A CN 112032137 A CN112032137 A CN 112032137A
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China
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valve
dcv
electromagnetic
pressure
pipeline
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CN112032137B (en
Inventor
谢玉洪
郝富强
孙钦
张纪亚
周学军
陈琼玉
丁会霞
钟雨桐
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Shenzhen Wellreach Automation Co ltd
China National Offshore Oil Corp CNOOC
CNOOC Research Institute Co Ltd
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Shenzhen Wellreach Automation Co ltd
China National Offshore Oil Corp CNOOC
CNOOC Research Institute Co Ltd
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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
    • 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
    • F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
    • F15B1/02—Installations or systems with accumulators
    • F15B1/04—Accumulators
    • 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
    • F15B21/04—Special measures taken in connection with the properties of the fluid
    • F15B21/041—Removal or measurement of solid or liquid contamination, e.g. filtering

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)

Abstract

The invention relates to an SCM (Single chip microcomputer) hydraulic system with high reliability and built-in redundancy function, which comprises an input valve block, a detachable filter block, a DCV (direct current valve) valve block and a hydraulic oil sea relief valve group, wherein the input valve block is connected with the detachable filter block; the output end of the input valve block is connected with the input end of the detachable filter block through a pipeline, and the output end of the detachable filter block is connected with the input end of the DCV valve block through a pipeline; the DCV valve block with through the pipe connection between the hydraulic oil sea valve bank, the input valve block is as the input of hydraulic oil, can dismantle the filter block and be arranged in filtering the impurity in the hydraulic oil, and convenient to detach changes, through control the opening and close of DCV valve controls to install in production tree and the opening and close of various flow function valves in the DCV valve block. The invention arranges the filter outside, makes redundant design for the valve block of the control key loop, and increases the reliability and safety of the SCM system operation.

Description

SCM hydraulic system with high reliability and built-in redundancy function
Technical Field
The invention relates to the technical field of offshore oil exploitation, in particular to an SCM (single chip microcomputer) hydraulic system with high reliability and built-in redundancy function.
Background
An underwater control module (called SCM) is an important component of a deep sea oil and gas exploitation system, controls the opening and closing of a DCV (distributed control Unit) in the SCM by receiving a control signal of a main control system MCS (modulation and coding scheme) arranged above water, realizes the opening and closing of various functional valves installed in a Christmas tree and a process, and has the functions of controlling the opening and closing of an underwater valve and collecting and sending data information such as temperature and pressure of fluid.
And the setting of filter among the SCM hydraulic system is the built-in filter of SCM generally among the existing design for the filter core often needs to retrieve whole SCM when losing filtering action because of blocking up or other reasons, carries out the maintenance or the replacement of filter on the land, and the work degree of difficulty is big, is unfavorable for improving work efficiency. The DCV valve is the most central key component of the SCM, the reliability of the DCV valve has a great influence on the whole system, and in the SCM hydraulic system, the DCV valve can have common faults of not opening or not closing, and the like, which has great influence on the SCM hydraulic system when controlling a key loop.
Disclosure of Invention
In view of the above problems, an object of the present invention is to provide an SCM hydraulic system with high reliability and built-in redundancy function, which can improve the reliability of the entire system by providing redundancy to a DCV valve controlling a key hydraulic circuit, and can effectively reduce the work difficulty and maintenance cost and improve the work efficiency.
In order to achieve the purpose, the invention adopts the following technical scheme: an SCM hydraulic system with high reliability and built-in redundancy function, comprising: the device comprises an input valve block, a detachable filter block, a DCV valve block and a hydraulic oil sea valve discharging group; the output end of the input valve block is connected with the input end of the detachable filter block through a pipeline, and the output end of the detachable filter block is connected with the input end of the DCV valve block through a pipeline; the DCV valve block with through the pipe connection between the hydraulic oil sea valve bank, the input valve block is as the input of hydraulic oil, can dismantle the filter block and be arranged in filtering the impurity in the hydraulic oil, and convenient to detach changes, through control the opening and close of DCV valve controls to install in production tree and the opening and close of various flow function valves in the DCV valve block.
Further, the input valve block comprises a high-pressure input pipeline, a low-pressure input pipeline, a first shuttle valve and a second shuttle valve; the output end of the high-pressure input pipeline is connected with the input end of a first shuttle valve, the output end of the first shuttle valve is connected with the detachable filter block through a quick connection hydraulic joint, the output end of the low-pressure input pipeline is connected with the input end of a second shuttle valve, and the output end of the second shuttle valve is connected with the detachable filter block through a quick connection hydraulic joint.
Furthermore, the number of the high-pressure input pipelines and the number of the low-pressure input pipelines are respectively set to be 2, and the high-pressure input pipelines and the low-pressure input pipelines respectively correspond to two input ends of the first shuttle valve and the second shuttle valve.
Further, the output end of the first shuttle valve is connected with the high-pressure energy accumulator in parallel through a pipeline, and the output end of the second shuttle valve is connected with the low-pressure energy accumulator in parallel through a pipeline.
Further, the removable filter block is connected outside the SCM body frame by the quick connect hydraulic connector conduit; the detachable filter block comprises a high pressure filter and a low pressure filter; the input end of the high-pressure filter is connected with the output end of the first shuttle valve through a pipeline, a high-pressure pipeline is arranged between the high-pressure filter and the DCV valve group block and is communicated through the high-pressure pipeline, and a first low-pressure pipeline is arranged between the low-pressure filter and the DCV valve group block and is communicated through the first low-pressure pipeline.
Further, a high-pressure flowmeter reserved mounting position is arranged on the high-pressure pipeline, and a low-pressure flowmeter reserved mounting position is arranged on the low-pressure pipeline; the first low-pressure pipeline is also provided with the second low-pressure pipeline in parallel, and the second low-pressure pipeline is used as a pilot hydraulic input pipeline and inputs pilot hydraulic pressure into each DCV valve; and a filter element of a pressure filter is installed at the input end of the second low-pressure pipeline.
Further, the DCV valve block comprises a main valve block, a second valve block, a third valve block, a fourth valve block, a fifth valve block and a sixth valve block; the main valve block comprises a first double-solenoid valve DCV valve, a second double-solenoid valve DCV valve, a first two-position two-way solenoid valve and a second two-position two-way solenoid valve; the input end of the first double-electromagnetic-valve DCV valve is connected with the first low-pressure pipeline, the output end of the first double-electromagnetic-valve DCV valve is connected with the input end of the first two-position two-way electromagnetic valve, and the output end of the first two-position two-way electromagnetic valve is connected with the quick connection hydraulic connector; the connection mode of the second two-position two-way solenoid valve and the second two-position two-way solenoid valve is the same as that of the first two-position two-way solenoid valve and the first two-way solenoid valve; the output ends of the first two-position two-way electromagnetic valve and the second two-position two-way electromagnetic valve are connected in parallel and are connected with the quick connection hydraulic joint through a pipeline;
the second valve block comprises a third double-electromagnetic-valve DCV valve, a fourth double-electromagnetic-valve DCV valve, a fifth double-electromagnetic-valve DCV valve and a sixth double-electromagnetic-valve DCV valve; the input end of the third double-electromagnetic-valve DCV valve is connected with the first low-pressure pipeline, and the output end of the third double-electromagnetic-valve DCV valve is connected with the quick-connection hydraulic joint through a pipeline; the input end of the fourth double-electromagnetic-valve DCV valve is connected with a high-pressure pipeline, and the output end of the fourth double-electromagnetic-valve DCV valve is connected with the quick-connection hydraulic connector through a pipeline; the connection mode of the fifth dual electromagnetic valve DCV valve and the sixth dual electromagnetic valve DCV valve is the same as the connection mode of the third dual electromagnetic valve DCV valve and the fourth dual electromagnetic valve DCV valve;
the third valve block comprises a seventh double electromagnetic valve DCV valve, an eighth double electromagnetic valve DCV valve, a ninth double electromagnetic valve DCV valve and a tenth double electromagnetic valve DCV valve; the input end of the seventh double-electromagnetic-valve DCV valve is connected with the first low-pressure pipeline, and the output end of the seventh double-electromagnetic-valve DCV valve is connected with the quick-connection hydraulic joint through a pipeline; the input end of the eighth double-electromagnetic-valve DCV valve is connected with the first low-pressure pipeline, and the output end of the eighth double-electromagnetic-valve DCV valve is connected with the quick-connection hydraulic joint through a pipeline; the ninth dual electromagnetic valve DCV valve and the tenth dual electromagnetic valve DCV valve are connected in the same manner as the seventh dual electromagnetic valve DCV valve and the eighth dual electromagnetic valve DCV valve;
the fourth valve block comprises an eleventh double electromagnetic valve DCV valve, a twelfth double electromagnetic valve DCV valve, a thirteenth double electromagnetic valve DCV valve and a fourteenth double electromagnetic valve DCV valve; the input end of the eleventh double-electromagnetic-valve DCV valve is connected with the first low-pressure pipeline, the output end of the eleventh double-electromagnetic-valve DCV valve is connected with the quick-connection hydraulic joint through a pipeline, the input end of the twelfth double-electromagnetic-valve DCV valve is connected with a high-pressure pipeline, and the output end of the twelfth double-electromagnetic-valve DCV valve is connected with the quick-connection hydraulic joint through a pipeline; the thirteenth dual electromagnetic valve DCV valve and the fourteenth dual electromagnetic valve DCV valve are connected in the same manner as the eleventh dual electromagnetic valve DCV valve and the twelfth dual electromagnetic valve DCV valve;
the fifth valve block comprises a fifteenth double electromagnetic valve DCV valve, a sixteenth double electromagnetic valve DCV valve, a seventeenth double electromagnetic valve DCV valve and an eighteenth double electromagnetic valve DCV valve; the input end of the fifteenth double-electromagnetic-valve DCV valve is connected with the first low-pressure pipeline, the output end of the fifteenth double-electromagnetic-valve DCV valve is connected with the quick-connection hydraulic joint through a pipeline, the input end of the sixteenth double-electromagnetic-valve DCV valve is connected with the first low-pressure pipeline, and the output end of the sixteenth double-electromagnetic-valve DCV valve is connected with the quick-connection hydraulic joint through a pipeline; the seventeenth dual electromagnetic valve DCV valve and the eighteenth dual electromagnetic valve DCV valve are connected in the same manner as the fifteenth dual electromagnetic valve DCV valve and the sixteenth dual electromagnetic valve DCV valve;
the sixth valve block comprises a nineteenth double-electromagnetic-valve DCV valve, a single-electromagnetic-valve DCV valve, a twentieth double-electromagnetic-valve DCV valve and a twenty-first double-electromagnetic-valve DCV valve; the input end of the nineteenth double-electromagnetic-valve DCV valve is connected with the first low-pressure pipeline, the output end of the nineteenth double-electromagnetic-valve DCV valve is connected with the quick-connection hydraulic connector through a pipeline, the input end of the single-electromagnetic-valve DCV valve is connected with the first low-pressure pipeline, and the output end of the single-electromagnetic-valve DCV valve is connected with the quick-connection hydraulic connector through a pipeline; and the twenty-second electromagnetic valve DCV valve and the twenty-first electromagnetic valve DCV valve are connected in the same way as the nineteenth electromagnetic valve DCV valve.
Further, the hydraulic oil sea relief valve group comprises a low-pressure backflow sea relief valve and a high-pressure backflow sea relief valve; the low-pressure backflow sea relief valve is communicated with the low-pressure backflow pipeline through a low-pressure sea relief pipeline which is arranged in parallel, and the high-pressure backflow sea relief valve is communicated with the high-pressure backflow pipeline through a high-pressure sea relief pipeline which is arranged in parallel.
Further, the backflow ends of the fourth, sixth, twelfth and fourteenth dual electromagnetic valves DCV valve are connected to the high-pressure backflow line, and the backflow ends of all the other dual and single electromagnetic valves DCV valve are connected to the low-pressure backflow line.
Furthermore, the hydraulic oil provided by the input valve block is water-based hydraulic oil, the hydraulic oil pressure of the high-pressure input pipeline is 0-10000PSI, and the hydraulic oil pressure of the low-pressure input pipeline is 0-5000 PSI.
Due to the adoption of the technical scheme, the invention has the following advantages: 1. the redundancy design of the main valve block in the DCV valve block can immediately close the first two-position two-way electromagnetic valve when the first double-electromagnetic valve DCV valve fails, and then switch to the second double-electromagnetic valve DCV valve and the second two-position two-way electromagnetic valve, so that the normal operation of the SCM hydraulic system is ensured. The DCV valve is the most central key component of the SCM, and its reliability has a great impact on the whole system. Providing redundancy to the DCV valves controlling the critical hydraulic circuits may result in improved overall system reliability. 2. The invention arranges the high-pressure and low-pressure filters outside, when the filter loses the filtering function due to blockage or other reasons in the working process, the quick connection hydraulic joint between the filter and the shuttle valve can be directly pulled out, the filter is detached and recovered with the shell, the filter element is replaced or the filter is repaired on land, and the whole SCM does not need to be recovered. The work difficulty and the maintenance cost are reduced, and the work efficiency is improved. 3. The high-pressure input pipeline and the low-pressure input pipeline are designed in a double-way mode, and the reliability of oil supply of the SCM hydraulic system can be effectively improved.
Drawings
Fig. 1 is a schematic diagram of the overall structure of an SCM hydraulic system of the present invention.
Reference numerals: 1-a first dual electromagnetic valve DCV valve, 2-a second dual electromagnetic valve DCV valve, 3-a third dual electromagnetic valve DCV valve, 4-a fourth dual electromagnetic valve DCV valve, 5-a fifth dual electromagnetic valve DCV valve, 6-a sixth dual electromagnetic valve DCV valve, 7-a seventh dual electromagnetic valve DCV valve, 8-an eighth dual electromagnetic valve DCV valve, 9-a ninth dual electromagnetic valve DCV valve, 10-a tenth dual electromagnetic valve DCV valve, 11-an eleventh dual electromagnetic valve DCV valve, 12-a twelfth dual electromagnetic valve DCV valve, 13-a thirteenth dual electromagnetic valve DCV valve, 14-a fourteenth dual electromagnetic valve DCV valve, 15-a fifteenth dual electromagnetic valve DCV valve, 16-a sixteenth electromagnetic valve DCV valve, 17-a seventeenth dual electromagnetic valve DCV valve, 18-an eighteenth dual electromagnetic valve DCV valve, 19-a nineteenth electromagnetic valve DCV valve, 20-a twentieth dual electromagnetic valve DCV valve, 21-a twenty-first double-solenoid valve DCV valve, 22-a single-solenoid valve DCV valve, 23-a first two-position two-way solenoid valve, 24-a second two-position two-way solenoid valve, 25-a low-pressure backflow sea valve, 26-a high-pressure backflow sea valve, 27-a first shuttle valve, 28-a second shuttle valve, 29-a low-pressure filter, 30-a high-pressure filter, 31-a high-pressure accumulator, 32-a low-pressure accumulator, 33-a filter element, 34-a low-pressure flowmeter reserved mounting position, and 35-a high-pressure flowmeter reserved mounting position.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the drawings of the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the invention, are within the scope of the invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, so to speak, as communicating between the two elements. Unless otherwise specifically stated or limited, the terms "conduit" and "line" are to be understood broadly, and may be, for example, hydraulic tubing or machined hydraulic flow passages. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. The technical solution of the present invention is further described below with reference to the accompanying drawings and examples.
As shown in fig. 1, the present invention provides an SCM hydraulic system with high reliability and built-in redundancy function, which includes an input valve block, a detachable filter block, a DCV valve block, and a hydraulic oil sea valve block. The output end of the input valve block is connected with the input end of the detachable filter block through a pipeline, and the output end of the detachable filter block is connected with the input end of the DCV valve block through a pipeline. The DCV valve block is connected with the hydraulic oil sea valve bank through a pipeline, the input valve block serves as the input end of hydraulic oil, the detachable filter block is used for filtering impurities in the hydraulic oil and convenient to detach and replace, and opening and closing of the DCV valve in the DCV valve block are controlled to be installed on the Christmas tree and various flow function valves.
In a preferred embodiment, the input valve block includes a high pressure input line, a low pressure input line, a first shuttle valve 27 and a second shuttle valve 28. The output end of the high-pressure input pipeline is connected with the input end of the first shuttle valve 27, and the output end of the first shuttle valve 27 is connected with the detachable filter block through a quick-connection hydraulic joint. The output of the low pressure input line is connected to the input of a second shuttle valve 28, the output of the second shuttle valve 28 being connected to the removable filter block by a quick connect hydraulic fitting.
In the above embodiment, the number of the high pressure input line and the low pressure input line is set to 2, and corresponds to the two input ends of the first shuttle valve 27 and the second shuttle valve 28, respectively.
In the above embodiment, the output end of the first shuttle valve 27 is connected in parallel to the high pressure accumulator 31 through a pipe, and the output end of the second shuttle valve 28 is connected in parallel to the low pressure accumulator 32 through a pipe.
In a preferred embodiment, the removable filter block is removably attached to the SCM body frame by quick connect hydraulic connector tubing. The removable filter block includes a high pressure filter 30 and a low pressure filter 29. The input end of the high-pressure filter 30 is connected with the output end of the first shuttle valve 27 through a pipeline, and a high-pressure pipeline is arranged between the high-pressure filter 30 and the DCV valve block and is communicated through the high-pressure pipeline; a first low-pressure pipeline is arranged between the low-pressure filter 29 and the DCV valve block and is communicated with the DCV valve block through the first low-pressure pipeline.
Wherein, the high pressure pipeline is provided with a high pressure flowmeter reserved mounting position 35, and the low pressure pipeline is provided with a low pressure flowmeter reserved mounting position 34. The first low-pressure pipeline is also provided with a second low-pressure pipeline in parallel, and the second low-pressure pipeline is used as a pilot hydraulic input pipeline and inputs pilot hydraulic pressure into each DCV valve; the input of the second low pressure line is fitted with a pressure filter cartridge 33.
In a preferred embodiment, the DCV valve block includes a main valve block, a second valve block, a third valve block, a fourth valve block, a fifth valve block, and a sixth valve block. Wherein:
the master valve block comprises a first dual solenoid valve DCV valve 1, a second dual solenoid valve DCV valve 2, a first two-position two-way solenoid valve 23 and a second two-position two-way solenoid valve 24. The input end of the first double-electromagnetic-valve DCV valve 1 is connected with a first low-pressure pipeline, the output end of the first double-electromagnetic-valve DCV valve 1 is connected with the input end of the first two-position two-way electromagnetic valve 23, and the output end of the first two-position two-way electromagnetic valve 23 is connected with the quick-connection hydraulic connector. The second two-position two-way solenoid valve DCV valve 2 and the second two-position two-way solenoid valve 24 are connected in the same manner as the first two-position two-way solenoid valve 23 and the first two-way solenoid valve DCV valve 1. The output ends of the first two-position two-way electromagnetic valve 23 and the second two-position two-way electromagnetic valve 24 are connected in parallel and are connected with the quick connection hydraulic connector through a pipeline.
The second valve block includes a third dual electromagnetic valve DCV valve 3, a fourth dual electromagnetic valve DCV valve 4, a fifth dual electromagnetic valve DCV valve 5, and a sixth dual electromagnetic valve DCV valve 6. The input end of a third double-electromagnetic-valve DCV valve 3 is connected with the first low-pressure pipeline, and the output end of the third double-electromagnetic-valve DCV valve 3 is connected with the quick-connection hydraulic joint through a pipeline; the input end of the fourth double-electromagnetic-valve DCV valve 4 is connected with a high-pressure pipeline, and the output end of the fourth double-electromagnetic-valve DCV valve 4 is connected with the quick-connection hydraulic connector through a pipeline. The connection of the fifth dual electromagnetic valve DCV valve 5 and the sixth dual electromagnetic valve DCV valve 6 is the same as the connection of the third dual electromagnetic valve DCV valve 3 and the fourth dual electromagnetic valve DCV valve 4.
The third valve block includes a seventh dual electromagnetic valve DCV valve 7, an eighth dual electromagnetic valve DCV valve 8, a ninth dual electromagnetic valve DCV valve 9, and a tenth dual electromagnetic valve DCV valve 10. The input end of a seventh double-electromagnetic-valve DCV valve 7 is connected with the first low-pressure pipeline, and the output end of the seventh double-electromagnetic-valve DCV valve 7 is connected with the quick-connection hydraulic joint through a pipeline; the input end of the eighth double-electromagnetic-valve DCV valve 8 is connected with the first low-pressure pipeline, and the output end of the eighth double-electromagnetic-valve DCV valve 8 is connected with the quick-connection hydraulic connector through a pipeline. The ninth dual electromagnetic valve DCV valve 9 and the tenth dual electromagnetic valve DCV valve 10 are connected in the same manner as the seventh dual electromagnetic valve DCV valve 7 and the eighth dual electromagnetic valve DCV valve 8.
The fourth valve block includes an eleventh dual electromagnetic valve DCV valve 11, a twelfth dual electromagnetic valve DCV valve 12, a thirteenth dual electromagnetic valve DCV valve 13, and a fourteenth dual electromagnetic valve DCV valve 14. The input end of the eleventh double-electromagnetic-valve DCV valve 11 is connected with the first low-pressure pipeline, the output end of the eleventh double-electromagnetic-valve DCV valve 11 is connected with the quick-connection hydraulic joint through a pipeline, the input end of the twelfth double-electromagnetic-valve DCV valve 12 is connected with the high-pressure pipeline, and the output end of the twelfth double-electromagnetic-valve DCV valve 12 is connected with the quick-connection hydraulic joint through a pipeline. The thirteenth dual electromagnetic valve DCV valve 13 and the fourteenth dual electromagnetic valve DCV valve 14 are connected in the same manner as the eleventh dual electromagnetic valve DCV valve 11 and the twelfth dual electromagnetic valve DCV valve 12.
The fifth valve block includes a fifteenth dual electromagnetic valve DCV valve 15, a sixteenth dual electromagnetic valve DCV valve 16, a seventeenth dual electromagnetic valve DCV valve 17, and an eighteenth dual electromagnetic valve DCV valve 18. The input and the first low pressure tube coupling of the two solenoid valve DCV valves 15 of fifteenth, the output and the quick connect hydraulic pressure of the two solenoid valve DCV valves 15 of fifteenth pass through the pipe connection, the input and the first low pressure tube coupling of the two solenoid valve DCV valves 16 of sixteenth, the output and the quick connect hydraulic pressure of the two solenoid valve DCV valves 16 of sixteenth pass through the pipe connection. The seventeenth dual electromagnetic valve DCV valve 17 and the eighteenth dual electromagnetic valve DCV valve 18 are connected in the same manner as the fifteenth dual electromagnetic valve DCV valve 15 and the sixteenth dual electromagnetic valve DCV valve 16.
The sixth valve block includes a nineteenth dual solenoid valve DCV valve 19, a single solenoid valve DCV valve 22, a twentieth dual solenoid valve DCV valve 20, and a twenty-first dual solenoid valve DCV valve 21. The input and the first low-pressure tube coupling of the two solenoid valve DCV valves of nineteenth 19, the output and the quick-connect hydraulic joint of the two solenoid valve DCV valves of nineteenth pass through the pipe connection, the input and the first low-pressure tube coupling of single solenoid valve DCV valve 22, and the output and the quick-connect hydraulic joint of single solenoid valve DCV valve 22 pass through the pipe connection. The twenty-second electromagnetic valve DCV valve 20 and the twenty-first electromagnetic valve DCV valve 21 are connected in the same manner as the nineteenth electromagnetic valve DCV valve 19.
During the use, set up redundantly to the DCV valve on the master valve piece, when SCM hydraulic system began work, through the normal open of the two solenoid valve DCV valve 1 of marine master control system MCS control first two solenoid valve and the two solenoid valve 23 of first two, the two solenoid valve DCV valve 2 of second two and two solenoid valve 24 keep closing, SCM hydraulic system pressurize normal work. When the first dual-solenoid valve DCV valve 1 fails, for example, the DCV valve is suddenly closed but not opened, the main control system receives a signal to immediately close the first two-position two-way solenoid valve 23, and automatically open the second dual-solenoid valve DCV valve 24 and the second two-position two-way solenoid valve 2, so that the automatic switching of the redundant control circuit is realized, and the hydraulic control of the SCM hydraulic system on the corresponding execution valve is maintained. When the SCM hydraulic system is used for pressure relief, when the first double-electromagnetic-valve DCV valve 1 fails to close, the main control system receives a signal to immediately close the first two-position two-way electromagnetic valve 23, and hydraulic oil is released through the closed second double-electromagnetic-valve DCV valve 2 and the second two-position two-way electromagnetic valve 24. Thus, an interlocking linkage mechanism of the redundant DCV valve is realized.
In a preferred embodiment, the hydraulic oil sea chest set includes a low pressure return sea chest valve 25 and a high pressure return sea chest valve 26. The low-pressure return sea relief valve 25 is communicated with the low-pressure return pipeline through a low-pressure sea relief pipeline arranged in parallel, and the high-pressure return sea relief valve 26 is communicated with the high-pressure return pipeline through a high-pressure sea relief pipeline arranged in parallel.
In the above embodiments, the return ports of the fourth dual electromagnetic valve DCV valve 4, the sixth dual electromagnetic valve DCV valve 6, the twelfth dual electromagnetic valve DCV valve 12, and the fourteenth dual electromagnetic valve DCV valve 14 are all connected to the high pressure return line, and the return ports of all the other dual electromagnetic valves DCV valves and the single electromagnetic valve DCV valve 22 are all connected to the low pressure return line.
In the above embodiments, the hydraulic oil provided by the input valve block is water-based hydraulic oil, the hydraulic oil pressure of the high-pressure input pipeline is 0-10000PSI, and the hydraulic oil pressure of the low-pressure input pipeline is 0-5000 PSI.
In summary, when the present invention is used, taking a high-pressure hydraulic pipeline as an example, high-pressure hydraulic oil enters the high-pressure hydraulic input pipeline through 2 quick-connection hydraulic connectors at the same time, and by using the quick switching function of the first shuttle valve 27, one of the hydraulic inputs is selected to enter the external high-pressure filter 30 for filtering, and a high-pressure accumulator 31 is further connected in parallel to the pipeline connecting the first shuttle valve 27 and the high-pressure filter 30, and mainly plays a role in maintaining pressure, absorbing and storing excess hydraulic energy. The high-pressure hydraulic oil passing through the high-pressure filter 30 enters a DCV valve block, the DCV valve block has six valve blocks, the high-pressure hydraulic oil enters each valve block containing the high-pressure DCV through a high-pressure pipeline, enters an output pipeline through the opened DCV, and is finally output through a quick-connection hydraulic connector; similarly, the working flow of the low-pressure hydraulic circuit is substantially the same as that of the high-pressure hydraulic circuit, except that the low-pressure hydraulic oil is filtered by the low-pressure filter 29 and then fed into the DCV valve block along the first low-pressure line, and the high-pressure hydraulic oil is filtered by the high-pressure filter 30 and then fed into the DCV valve block along the high-pressure line.
The high-pressure loop and the low-pressure loop are both provided with reserved mounting positions of flow meters, the pressure of a pipeline can be monitored at any time, the external high-pressure filter 30 and the external low-pressure filter 29 can be pulled out from a quick connection hydraulic joint for repair or replacement when a filter element is damaged or fails, the whole SCM hydraulic system does not need to be stopped and corrected, the reliability and the stability of the system work are enhanced, a key control loop on a DCV valve bank block can be additionally provided with a second double-solenoid valve DCV valve and a second two-position two-way solenoid valve in a redundant design, the fact that when a fault occurs on one functional loop, the functional loop can be timely switched to the other functional loop to guarantee the continuous operation of the system is guaranteed, the hydraulic input pipeline also can be subjected to a dual-path coexisting redundant design, and the high reliability of the SCM hydraulic system is guaranteed in.
The above embodiments are only for illustrating the present invention, and the structure, size, arrangement position and shape of each component can be changed, and on the basis of the technical scheme of the present invention, the improvement and equivalent transformation of the individual components according to the principle of the present invention should not be excluded from the protection scope of the present invention.

Claims (10)

1. An SCM hydraulic system with high reliability and built-in redundancy function, comprising: the device comprises an input valve block, a detachable filter block, a DCV valve block and a hydraulic oil sea valve discharging group; the output end of the input valve block is connected with the input end of the detachable filter block through a pipeline, and the output end of the detachable filter block is connected with the input end of the DCV valve block through a pipeline; the DCV valve block with through the pipe connection between the hydraulic oil sea valve bank, the input valve block is as the input of hydraulic oil, can dismantle the filter block and be arranged in filtering the impurity in the hydraulic oil, and convenient to detach changes, through control the opening and close of DCV valve controls to install in production tree and the opening and close of various flow function valves in the DCV valve block.
2. The SCM hydraulic system according to claim 1, wherein: the input valve block comprises a high pressure input pipeline, a low pressure input pipeline, a first shuttle valve (27) and a second shuttle valve (28); the output end of the high-pressure input pipeline is connected with the input end of a first shuttle valve (27), the output end of the first shuttle valve (27) is connected with the detachable filter block through a quick connection hydraulic joint, the output end of the low-pressure input pipeline is connected with the input end of a second shuttle valve (28), and the output end of the second shuttle valve (28) is connected with the detachable filter block through a quick connection hydraulic joint.
3. The SCM hydraulic system of claim 2, wherein: the number of the high-pressure input pipeline and the number of the low-pressure input pipeline are respectively set to be 2, and the high-pressure input pipeline and the low-pressure input pipeline respectively correspond to two input ends of the first shuttle valve (27) and the second shuttle valve (28).
4. The SCM hydraulic system according to claim 3, wherein: the output end of the first shuttle valve (27) is connected with a high-pressure accumulator (31) in parallel through a pipeline, and the output end of the second shuttle valve (28) is connected with a low-pressure accumulator (32) in parallel through a pipeline.
5. The SCM hydraulic system according to claim 1, wherein: the detachable filter block is connected outside the SCM main body frame through the quick connection hydraulic connector pipeline; the removable filter block comprises a high pressure filter (30) and a low pressure filter (29); the input end of the high-pressure filter (30) is connected with the output end of the first shuttle valve (27) through a pipeline, a high-pressure pipeline is arranged between the high-pressure filter (30) and the DCV valve block and is communicated through the high-pressure pipeline, and a first low-pressure pipeline is arranged between the low-pressure filter (29) and the DCV valve block and is communicated through the first low-pressure pipeline.
6. The SCM hydraulic system according to claim 5, wherein a high pressure flow meter reserved mounting location (35) is provided on the high pressure line and a low pressure flow meter reserved mounting location (34) is provided on the low pressure line; the first low-pressure pipeline is also provided with the second low-pressure pipeline in parallel, and the second low-pressure pipeline is used as a pilot hydraulic input pipeline and inputs pilot hydraulic pressure into each DCV valve; and a filter element (33) of a pressure filter is arranged at the input end of the second low-pressure pipeline.
7. The SCM hydraulic system of claim 6, wherein the DCV valve block includes a main valve block, a second valve block, a third valve block, a fourth valve block, a fifth valve block, and a sixth valve block;
the main valve block comprises a first double-solenoid valve DCV valve (1), a second double-solenoid valve DCV valve (2), a first two-position two-way solenoid valve (23) and a second two-position two-way solenoid valve (24); the input end of the first double-electromagnetic-valve DCV valve (1) is connected with the first low-pressure pipeline, the output end of the first double-electromagnetic-valve DCV valve (1) is connected with the input end of the first two-position two-way electromagnetic valve (23), and the output end of the first two-position two-way electromagnetic valve (23) is connected with the quick-connection hydraulic connector; the connection mode of the second two-position two-way electromagnetic valve DCV valve (2) and the second two-position two-way electromagnetic valve (24) is the same as that of the first two-position two-way electromagnetic valve (23) and the first two-way electromagnetic valve DCV valve (1); the output ends of the first two-position two-way electromagnetic valve (23) and the second two-position two-way electromagnetic valve (24) are connected in parallel and are connected with the quick connection hydraulic joint through a pipeline;
the second valve block comprises a third dual electromagnetic valve DCV valve (3), a fourth dual electromagnetic valve DCV valve (4), a fifth dual electromagnetic valve DCV valve (5) and a sixth dual electromagnetic valve DCV valve (6); the input end of the third double-electromagnetic-valve DCV valve (3) is connected with the first low-pressure pipeline, and the output end of the third double-electromagnetic-valve DCV valve (3) is connected with the quick-connection hydraulic joint through a pipeline; the input end of the fourth double-electromagnetic-valve DCV valve (4) is connected with a high-pressure pipeline, and the output end of the fourth double-electromagnetic-valve DCV valve (4) is connected with the quick-connection hydraulic joint through a pipeline; the connection mode of the fifth double electromagnetic valve DCV valve (5) and the sixth double electromagnetic valve DCV valve (6) is the same as the connection mode of the third double electromagnetic valve DCV valve (3) and the fourth double electromagnetic valve DCV valve (4);
the third valve block comprises a seventh double electromagnetic valve DCV valve (7), an eighth double electromagnetic valve DCV valve (8), a ninth double electromagnetic valve DCV valve (9) and a tenth double electromagnetic valve DCV valve (10); the input end of the seventh double-electromagnetic-valve DCV valve (7) is connected with the first low-pressure pipeline, and the output end of the seventh double-electromagnetic-valve DCV valve (7) is connected with the quick-connection hydraulic joint through a pipeline; the input end of the eighth double-electromagnetic-valve DCV valve (8) is connected with the first low-pressure pipeline, and the output end of the eighth double-electromagnetic-valve DCV valve (8) is connected with the quick-connection hydraulic joint through a pipeline; the ninth dual electromagnetic valve DCV valve (9) and the tenth dual electromagnetic valve DCV valve (10) are connected in the same manner as the seventh dual electromagnetic valve DCV valve (7) and the eighth dual electromagnetic valve DCV valve (8);
the fourth valve block comprises an eleventh dual electromagnetic valve DCV valve (11), a twelfth dual electromagnetic valve DCV valve (12), a thirteenth dual electromagnetic valve DCV valve (13) and a fourteenth dual electromagnetic valve DCV valve (14); the input end of the eleventh double-electromagnetic-valve DCV valve (11) is connected with the first low-pressure pipeline, the output end of the eleventh double-electromagnetic-valve DCV valve (11) is connected with the quick-connection hydraulic joint through a pipeline, the input end of the twelfth double-electromagnetic-valve DCV valve (12) is connected with a high-pressure pipeline, and the output end of the twelfth double-electromagnetic-valve DCV valve (12) is connected with the quick-connection hydraulic joint through a pipeline; the thirteenth dual electromagnetic valve DCV valve (13) and the fourteenth dual electromagnetic valve DCV valve (14) are connected in the same manner as the eleventh dual electromagnetic valve DCV valve (11) and the twelfth dual electromagnetic valve DCV valve (12);
the fifth valve block comprises a fifteenth dual electromagnetic valve DCV valve (15), a sixteenth dual electromagnetic valve DCV valve (16), a seventeenth dual electromagnetic valve DCV valve (17) and an eighteenth dual electromagnetic valve DCV valve (18); the input end of the fifteenth double-electromagnetic-valve DCV valve (15) is connected with the first low-pressure pipeline, the output end of the fifteenth double-electromagnetic-valve DCV valve (15) is connected with the quick-connection hydraulic joint through a pipeline, the input end of the sixteenth double-electromagnetic-valve DCV valve (16) is connected with the first low-pressure pipeline, and the output end of the sixteenth double-electromagnetic-valve DCV valve (16) is connected with the quick-connection hydraulic joint through a pipeline; the seventeenth dual electromagnetic valve DCV valve (17) and the eighteenth dual electromagnetic valve DCV valve (18) are connected in the same manner as the fifteenth dual electromagnetic valve DCV valve (15) and the sixteenth dual electromagnetic valve DCV valve (16);
the sixth valve block comprises a nineteenth double-electromagnetic valve DCV valve (19), a single-electromagnetic valve DCV valve (22), a twentieth double-electromagnetic valve DCV valve (20) and a twentieth double-electromagnetic valve DCV valve (21); the input end of the nineteenth double-electromagnetic-valve DCV valve (19) is connected with the first low-pressure pipeline, the output end of the nineteenth double-electromagnetic-valve DCV valve (19) is connected with the quick-connection hydraulic connector through a pipeline, the input end of the single-electromagnetic-valve DCV valve (22) is connected with the first low-pressure pipeline, and the output end of the single-electromagnetic-valve DCV valve (22) is connected with the quick-connection hydraulic connector through a pipeline; the twenty-second electromagnetic valve DCV valve (20) and the twenty-second electromagnetic valve DCV valve (21) are connected in the same manner as the nineteenth electromagnetic valve DCV valve (19).
8. The SCM hydraulic system according to claim 7, wherein the hydraulic oil sea chest set comprises a low pressure return sea chest valve (25) and a high pressure return sea chest valve (26); the low-pressure backflow sea drainage valve (25) is communicated with the low-pressure backflow pipeline through a low-pressure sea drainage pipeline arranged in parallel, and the high-pressure backflow sea drainage valve (26) is communicated with the high-pressure backflow pipeline through a high-pressure sea drainage pipeline arranged in parallel.
9. The SCM hydraulic system according to claim 8, wherein the return ports of the fourth (4), sixth (6), twelfth (12) and fourteenth (14) dual solenoid valves are connected to the high pressure return line, and the return ports of all the remaining dual and single solenoid valves are connected to the low pressure return line (22).
10. The SCM hydraulic system of claim 2, wherein the hydraulic fluid provided by the inlet valve block is water-based, the high pressure inlet line has a hydraulic pressure of 0-10000PSI, and the low pressure inlet line has a hydraulic pressure of 0-5000 PSI.
CN202011083483.8A 2020-10-12 2020-10-12 SCM hydraulic system with high reliability and built-in redundancy function Active CN112032137B (en)

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