CN112065804B - Make things convenient for filter to overhaul and built-in SCM hydraulic system of redundant function - Google Patents
Make things convenient for filter to overhaul and built-in SCM hydraulic system of redundant function Download PDFInfo
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- CN112065804B CN112065804B CN202011083104.5A CN202011083104A CN112065804B CN 112065804 B CN112065804 B CN 112065804B CN 202011083104 A CN202011083104 A CN 202011083104A CN 112065804 B CN112065804 B CN 112065804B
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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
- F15B13/027—Check valves
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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
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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
- F15B21/04—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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Abstract
The invention relates to an SCM (Single chip Microcomputer) hydraulic system which is convenient for filter maintenance and has a built-in redundancy function, and the SCM hydraulic system comprises a hydraulic system and a filter; the hydraulic system comprises a first two-position two-way electromagnetic valve, a second two-position two-way electromagnetic valve, a first DCV valve and a second DCV valve; an input port of the first two-position two-way electromagnetic valve is connected with an output port of a first DCV valve of the functional valve block, and an output port of the first two-position two-way electromagnetic valve is provided with a quick connection hydraulic connector; an input port of the second two-position two-way electromagnetic valve is connected with an output port of the second DCV valve, and an output port of the second two-position two-way electromagnetic valve is connected with an output port of the first two-position two-way electromagnetic valve through a pipeline; the filter comprises a high-pressure filter and a low-pressure filter; the high-pressure filter and the low-pressure filter are correspondingly connected with a high-pressure pipeline and a low-pressure pipeline of the SCM hydraulic system through quick connection hydraulic connectors respectively. The invention can ensure the normal operation of the whole system, thereby saving the manpower, reducing the cost, improving the working efficiency and enhancing the reliability of the system.
Description
Technical Field
The invention relates to the technical field of offshore oil exploitation, in particular to an SCM (Single chip microcomputer) hydraulic system which is convenient for filter maintenance and has a built-in redundancy function.
Background
An underwater control module (called SCM) is an important component of a deep sea oil and gas exploitation system, and 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) arranged above water, so that various functional valves installed in a Christmas tree and a process flow are opened and closed, and the function of controlling the opening and closing of an underwater valve and collecting and sending data information such as temperature and pressure of fluid is achieved.
In the existing design, due to the arrangement of the filter in the SCM hydraulic system, the filter element loses the filtering effect due to blockage or other reasons, the whole SCM is required to be recovered to repair or replace the filter, the working difficulty is high, and the improvement of the working efficiency is not facilitated; in the SCM hydraulic system, the DCV valve can not be opened or closed, and other common faults occur, which have great influence on the SCM hydraulic system when the SCM hydraulic system controls a key circuit.
Disclosure of Invention
In view of the above problems, an object of the present invention is to provide an SCM hydraulic system with built-in redundancy function, which facilitates filter maintenance and can effectively improve the reliability of the system operation.
In order to achieve the purpose, the invention adopts the following technical scheme: an SCM hydraulic system facilitating filter servicing and having a built-in redundant function, comprising: a hydraulic system and a filter; the hydraulic system comprises a first two-position two-way electromagnetic valve, a second two-position two-way electromagnetic valve, a first DCV valve and a second DCV valve; an input port of the first two-position two-way electromagnetic valve is connected with an output port of the first DCV valve of the functional valve block, and a quick connection hydraulic connector is installed at an output port of the first two-position two-way electromagnetic valve; an input port of the second two-position two-way electromagnetic valve is connected with an output port of the second DCV valve, and an output port of the second two-position two-way electromagnetic valve is connected with an output port of the first two-position two-way electromagnetic valve through a pipeline; the filter comprises a high pressure filter and a low pressure filter; the high-pressure filter and the low-pressure filter are respectively and correspondingly connected with a high-pressure pipeline and a low-pressure pipeline of the SCM hydraulic system through quick connection hydraulic connectors.
Further, the high pressure filter includes a high pressure filter element, a first high pressure check valve, a second high pressure check valve, and a third high pressure check valve; an input port of the high-pressure filter element is connected with an output port of the high-pressure pipeline through a quick-connection hydraulic joint, an input port of the first high-pressure check valve is connected with an output port of the high-pressure filter element through a pipeline, and an output port of the first high-pressure check valve is connected with an input port of the high-pressure pipeline through a quick-connection hydraulic joint; the input port of the second high-pressure check valve is connected with the input port of the high-pressure filter element through a pipeline, the output port of the second high-pressure check valve and the input port of the third high-pressure check valve are both connected with the output port of the first high-pressure check valve, and the output port of the third high-pressure check valve is connected with the input port of the high-pressure filter element through a pipeline.
Further, the low pressure filter includes a low pressure filter element, a first low pressure check valve, a second low pressure check valve, and a third low pressure check valve; the input port of the low-pressure filter element is connected with the output port of the low-pressure pipeline through a quick-connection hydraulic joint, the input port of the first low-pressure check valve is connected with the output port of the low-pressure filter element through a pipeline, and the output port of the first low-pressure check valve is connected with the input port of the low-pressure pipeline through a quick-connection hydraulic joint; the input port of the second low-pressure check valve is connected with the input port of the low-pressure filter element through a pipeline, the output port of the second low-pressure check valve and the input port of the third low-pressure check valve are connected with the output port of the first low-pressure check valve, and the output port of the third low-pressure check valve is connected with the input port of the low-pressure filter element through a pipeline.
Further, both the high pressure filter and the low pressure filter may be removably mounted outside of the housing of the SCM hydraulic system.
Further, pressure sensors are respectively installed at the output ports of the first high-pressure check valve and the first low-pressure check valve.
Further, the hydraulic system is arranged on one valve block of the functional valve blocks, which controls the key circuit, or on a plurality of valve blocks, and redundancy is carried out on the corresponding valve blocks.
Further, the input ports of the first two-position two-way solenoid valve and the second two-position two-way solenoid valve are respectively connected with a pressure sensor.
Due to the adoption of the technical scheme, the invention has the following advantages: 1. in the hydraulic system, the filter is arranged at the outer side of the shell of the SCM hydraulic system and is connected through the quick-connection hydraulic joint, when the filter element fails, the filter can be pulled out from the outer side, and the filter is detached and recovered to land for maintenance and replacement, so that the whole SCM is not required to be recovered. 2. According to the hydraulic system, the functional valve block for controlling the key loop is designed in a redundant mode, the two-position two-way electromagnetic valves are connected in parallel, one of the two-position two-way electromagnetic valves is in a normally closed state, only when the other one of the two-position two-way electromagnetic valves fails (cannot be closed or cannot be opened), a fault oil circuit can be closed through electric signal control, the other loop is opened, the normal operation of the SCM hydraulic system is guaranteed, and the working reliability of the system is improved.
Drawings
Fig. 1 is a schematic diagram of the overall structure of an SCM hydraulic system of the present invention.
Reference numerals: 1. an SCM hydraulic system housing; 2. a low pressure line; 3. a high pressure line; 4. a low pressure filter; 41. a filter element; 42. a first low pressure check valve; 43. a second low pressure check valve; 44. a third low pressure check valve; 5. a high pressure filter; 51. a filter element; 52. a first high pressure check valve; 53. a second high pressure check valve; 54. a third high pressure check valve; 6. a pressure sensor; 7. a first DCV valve; 8. a second DCV valve; 9. a first two-position two-way solenoid valve; 10. and the second two-position two-way electromagnetic valve.
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. 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 invention provides an SCM hydraulic system with built-in redundancy function, which facilitates filter maintenance and comprises a hydraulic system and a filter. The hydraulic system comprises a first two-position two-way electromagnetic valve 9, a second two-position two-way electromagnetic valve 10, a first DCV valve 7 and a second DCV valve 8; an input port of the first two-position two-way electromagnetic valve 9 is connected with an output port of the first DCV valve 7 of the functional valve block, and a quick connection hydraulic connector is installed at an output port of the first two-position two-way electromagnetic valve 9. The second DCV valve 8 is identical to the first DCV valve 7 in structure and principle, an input port of the second two-position two-way solenoid valve 10 is connected with an output port of the second DCV valve 8, and an output port of the second two-position two-way solenoid valve 10 is connected with an output port of the first two-position two-way solenoid valve 9 through a pipeline.
The filter comprises a high pressure filter 5 and a low pressure filter 4; high pressure filter 5 and low pressure filter 4 correspond through quick connection hydraulic joint and SCM hydraulic system's high-pressure line 3 and low-pressure line 2 respectively and are connected, and high pressure filter 5 and low pressure filter 4 all can be dismantled and install in SCM hydraulic system's the shell 1 outside.
In the above embodiment, the high-pressure filter 5 includes the high-pressure filter element 51, the first high-pressure check valve 52, the second high-pressure check valve 53, and the third high-pressure check valve 54. The input port of the high-pressure filter element 51 is connected with the output port of the high-pressure pipeline 3 of the SCM hydraulic system through a quick-connection hydraulic joint, the input port of the first high-pressure check valve 52 is connected with the output port of the high-pressure filter element 51 through a pipeline, and the output port of the first high-pressure check valve 52 is connected with the input port of the high-pressure pipeline 3 of the SCM hydraulic system through a quick-connection hydraulic joint. An input port of the second high-pressure check valve 53 is connected with an input port of the high-pressure filter element 51 through a pipeline, an output port of the second high-pressure check valve 53 and an input port of the third high-pressure check valve 54 are both connected with an output port of the first high-pressure check valve 52, and an output port of the third high-pressure check valve 54 is connected with an input port of the high-pressure filter element 51 through a pipeline. The first high-pressure check valve 52 prevents the filter element 41 from being damaged by the filtered hydraulic oil flowing back to the high-pressure filter element 51, and the second high-pressure check valve 53 and the third high-pressure check valve 54 perform secondary filtering of the filtered hydraulic oil flowing back to the input port of the high-pressure filter element 51.
In the above embodiments, the low-pressure filter 4 includes the low-pressure filter element 41, the first low-pressure check valve 42, the second low-pressure check valve 43, and the third low-pressure check valve 44. The input port of the low-pressure filter element 41 is connected with the output port of the low-pressure pipeline 2 of the SCM hydraulic system through a quick-connection hydraulic joint, the input port of the first low-pressure check valve 42 is connected with the output port of the low-pressure filter element 41 through a pipeline, and the output port of the first low-pressure check valve 42 is connected with the input port of the low-pressure pipeline 2 of the SCM hydraulic system through a quick-connection hydraulic joint. An input port of the second low-pressure check valve 43 is connected to an input port of the low-pressure filter element 41 through a pipe, an output port of the second low-pressure check valve 43 is connected to an output port of the first low-pressure check valve 42, an input port of the third low-pressure check valve 44 is connected to an output port of the first low-pressure check valve 42, and an output port of the third low-pressure check valve 44 is connected to an input port of the low-pressure filter element 41 through a pipe. The first low-pressure check valve 42 prevents the filtered hydraulic oil from flowing back to the low-pressure filter element 41 to damage the filter element 41, and the second and third low- pressure check valves 43 and 44 perform secondary filtering of the filtered hydraulic oil flowing back to the input port of the low-pressure filter element 41.
In the above embodiments, the pressure sensors 6 are attached to the output ports of the first high-pressure check valve 52 and the first low-pressure check valve 42, respectively, so that the change in the hydraulic oil pressure can be monitored in real time.
In the above embodiments, the hydraulic system may be disposed on one valve block of the functional valve blocks, which controls the critical circuit, or may be disposed on a plurality of valve blocks, and the corresponding valve blocks are redundantly disposed. Two-position two-way electromagnetic valves connected in parallel are added and are respectively connected with corresponding valve blocks, one of the two-position two-way electromagnetic valves is in a normally closed state, when the valve block with the other two-position two-way electromagnetic valve in the valve block fails, the circuit can be controlled to be closed through an electric signal, the other circuit is opened, the normal operation of the function of the valve block is ensured, and the working reliability of the SCM hydraulic system is improved.
In the above embodiments, the pressure sensors 6 are respectively connected to the input ports of the first two-position two-way solenoid valve 9 and the second two-position two-way solenoid valve 10, so that the change of the hydraulic oil pressure can be monitored in real time.
In conclusion, when the filter or SCM hydraulic system is used, the filter part of the hydraulic system is connected with the main body hydraulic system through the special joint, and the output hydraulic pressure adopts the redundant design of two sets of DCV control, so that small parts can be replaced and maintained or switched to a standby DCV output loop when the filter or SCM hydraulic system fails, the normal operation of the whole system is ensured, the manpower is saved, the cost is reduced, the working efficiency is improved, and the reliability of the system is enhanced.
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 (5)
1. The utility model provides a make things convenient for filter to overhaul and built-in redundant function SCM hydraulic system which characterized in that includes: a hydraulic system and a filter; the hydraulic system comprises a first two-position two-way electromagnetic valve, a second two-position two-way electromagnetic valve, a first DCV valve and a second DCV valve; an input port of the first two-position two-way electromagnetic valve is connected with an output port of the first DCV valve of the functional valve block, and a quick connection hydraulic connector is installed at an output port of the first two-position two-way electromagnetic valve; an input port of the second two-position two-way electromagnetic valve is connected with an output port of the second DCV valve, and an output port of the second two-position two-way electromagnetic valve is connected with an output port of the first two-position two-way electromagnetic valve through a pipeline; when the first two-position two-way electromagnetic valve is opened, the second two-position two-way electromagnetic valve is closed; when the second two-position two-way electromagnetic valve is opened, the first two-position two-way electromagnetic valve is closed;
the filter comprises a high pressure filter and a low pressure filter; the high-pressure filter and the low-pressure filter are correspondingly connected with a high-pressure pipeline and a low-pressure pipeline of the SCM hydraulic system through quick connection hydraulic connectors respectively;
the high-pressure filter comprises a high-pressure filter element, a first high-pressure check valve, a second high-pressure check valve and a third high-pressure check valve; the input port of the high-pressure filter element is connected with the output port of the high-pressure pipeline through a quick-connection hydraulic joint, the input port of the first high-pressure check valve is connected with the output port of the high-pressure filter element through a pipeline, and the output port of the first high-pressure check valve is connected with the input port of the high-pressure pipeline through a quick-connection hydraulic joint; an input port of the second high-pressure check valve is connected with an input port of the high-pressure filter element through a pipeline, an output port of the second high-pressure check valve and an input port of the third high-pressure check valve are both connected with an output port of the first high-pressure check valve, and an output port of the third high-pressure check valve is connected with the input port of the high-pressure filter element through a pipeline;
the low pressure filter includes a low pressure filter element, a first low pressure check valve, a second low pressure check valve, and a third low pressure check valve; the input port of the low-pressure filter element is connected with the output port of the low-pressure pipeline through a quick-connection hydraulic joint, the input port of the first low-pressure check valve is connected with the output port of the low-pressure filter element through a pipeline, and the output port of the first low-pressure check valve is connected with the input port of the low-pressure pipeline through a quick-connection hydraulic joint; the input port of the second low-pressure check valve is connected with the input port of the low-pressure filter element through a pipeline, the output port of the second low-pressure check valve and the input port of the third low-pressure check valve are connected with the output port of the first low-pressure check valve, and the output port of the third low-pressure check valve is connected with the input port of the low-pressure filter element through a pipeline.
2. The SCM hydraulic system as claimed in claim 1 wherein: both the high pressure filter and the low pressure filter are removably mounted outside of a housing of the SCM hydraulic system.
3. The SCM hydraulic system according to claim 1, wherein: and pressure sensors are respectively arranged at the output ports of the first high-pressure check valve and the first low-pressure check valve.
4. The SCM hydraulic system according to claim 1, wherein: the hydraulic system is arranged on one valve block of the functional valve blocks for controlling the key circuit or on a plurality of valve blocks, and redundancy arrangement is carried out on the corresponding valve blocks.
5. The SCM hydraulic system according to claim 1, wherein: and the input ports of the first two-position two-way electromagnetic valve and the second two-position two-way electromagnetic valve are respectively connected with a pressure sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011083104.5A CN112065804B (en) | 2020-10-12 | 2020-10-12 | Make things convenient for filter to overhaul and built-in SCM hydraulic system of redundant function |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011083104.5A CN112065804B (en) | 2020-10-12 | 2020-10-12 | Make things convenient for filter to overhaul and built-in SCM hydraulic system of redundant function |
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| CN112065804A CN112065804A (en) | 2020-12-11 |
| CN112065804B true CN112065804B (en) | 2022-11-01 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103511361B (en) * | 2013-10-24 | 2016-03-16 | 江汉石油钻头股份有限公司 | Subsea production tree hydraulic system |
| CN109200660A (en) * | 2018-11-16 | 2019-01-15 | 美钻深海能源科技研发（上海）有限公司 | A kind of underwater SCM redundant filtration device |
| CN209325105U (en) * | 2018-12-17 | 2019-08-30 | 重庆前卫科技集团有限公司 | Unidirectional valve group for subsea control modules |
| CN110081226B (en) * | 2019-03-14 | 2020-02-14 | 哈尔滨工程大学 | Integrated hydraulic pressure base plate of control module under water |
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