CN105443248A - Standby system with electro-hydraulic conversion components of different structures - Google Patents
Standby system with electro-hydraulic conversion components of different structures Download PDFInfo
- Publication number
- CN105443248A CN105443248A CN201510737584.5A CN201510737584A CN105443248A CN 105443248 A CN105443248 A CN 105443248A CN 201510737584 A CN201510737584 A CN 201510737584A CN 105443248 A CN105443248 A CN 105443248A
- Authority
- CN
- China
- Prior art keywords
- electromagnetic valve
- conversion
- actuator
- speed electromagnetic
- electrohydraulic control
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C9/00—Controlling gas-turbine plants; Controlling fuel supply in air- breathing jet-propulsion plants
- F02C9/26—Control of fuel supply
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2270/00—Control
- F05D2270/01—Purpose of the control system
- F05D2270/09—Purpose of the control system to cope with emergencies
- F05D2270/094—Purpose of the control system to cope with emergencies by using back-up controls
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2270/00—Control
- F05D2270/50—Control logic embodiments
- F05D2270/56—Control logic embodiments by hydraulic means, e.g. hydraulic valves within a hydraulic circuit
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2270/00—Control
- F05D2270/60—Control system actuates means
- F05D2270/64—Hydraulic actuators
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The invention provides a standby system with electro-hydraulic conversion components of different structures. The standby system comprises a low-pressure pressure source (1), an electro-hydraulic servo valve (2), a throttling nozzle (3), an execution mechanism (4), a conversion electromagnetic valve (5), a high-speed electromagnetic valve (6) and a fixed-pressure oil source (7), wherein the electro-hydraulic servo valve (2) is a master control passage of the system; the high-speed electromagnetic valve (6) is a standby passage of the system; the normally open type conversion electromagnetic valve (5) is used for switching over between the master control passage and the standby passage. The standby system is simple in structure. The two electro-hydraulic conversion components are in non-similar designs, and complementary in function, so that a resolution strategy is provided for similar failures from the aspect of the system.
Description
Technical field
The invention belongs to aeroengine control system hydro-mechanical unit field, be specifically related to a kind of electric liquid converting member isomery standby system.
Background technique
Along with the application of Full Authority Digital electron controls technology on aeroengine fuel control system, the reliability design of electric liquid conversion equipment is had higher requirement.Now, control system generally adopts same structure or analog structure redundancy technique to back up electric liquid converting member, and this same structure or analog structure backup cause structural redundancy, and system weight increases, and is difficult to avoid similar fault.
A kind of electric liquid converting member adopting two spray block electro-hydraulic servo valve arrangement is had in prior art, because electrohydraulic control contamination resistance is poor, if system margins controlling plan design is unreasonable, even if there is advanced electronic controller to be also difficult to the control effects of realizing ideal.
Summary of the invention
The object of the invention is, under the prerequisite of not sacrificial system reliability, to propose a kind of framework simple, the one electricity liquid converting member isomery standby system that contamination resistance is strong.
Consider the problems referred to above of prior art, according to an aspect disclosed by the invention, the present invention by the following technical solutions:
A kind of electric liquid converting member isomery standby system, comprises low pressure source (1), electrohydraulic control (2), flow nipple (3), actuator (4), conversion electromagnetic valve (5), high-speed electromagnetic valve (6) and level pressure oil sources (7);
In described system, provide stable fuel pressure by level pressure oil sources (7) to electrohydraulic control (2), actuator (4) and high-speed electromagnetic valve (6); Conversion electromagnetic valve (5) connects electrohydraulic control (2) and high-speed electromagnetic valve (6); Conversion electromagnetic valve (5) and high-speed electromagnetic valve (6) are connected to actuator (4), carry out flow or Stress control to actuator (4); Actuator (4), conversion electromagnetic valve (5) and high-speed electromagnetic valve (6) connecting joint stem bar (3); Electrohydraulic control (2) and flow nipple (3) oil return flow into low pressure source (1); The master control passage that electrohydraulic control (2) is described system, the backup path that high-speed electromagnetic valve (6) is described system, conversion electromagnetic valve open in usual (5) is for the switching between master control passage and backup path;
In work, when electrohydraulic control (2) breaks down, send voltage signal by the electronic controller of motor to conversion electromagnetic valve open in usual (5), carry out electric liquid conversion, realize the switching between master control passage and backup path; Electronic controller sends pulse-width signal to high-speed electromagnetic valve (6) simultaneously, carry out electric liquid conversion, change output flow or the pressure of high-speed electromagnetic valve (6), adjustment actuating mechanism (4) is mobile, with actuator (4) rigidly connected LVDT the position feedback of actuator (4) to electronic controller, the auxiliary voltage stabilizing that flow nipple (3) carries out described system regulates, and described various parts oil return flows into low pressure source (1).
The invention has the advantages that:
One of the present invention electric liquid converting member isomery standby system, structure is simple, and two kinds of electric liquid converting members are non-similar Design, have complementary functions, propose resolution policy to the generation of similar fault from system perspective.
Accompanying drawing explanation
Fig. 1 is electric liquid converting member isomery standby system structural drawing.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail, but embodiments of the present invention are not limited thereto.
See accompanying drawing 1, electric liquid converting member isomery standby system of the present invention, comprises low pressure source (1), electrohydraulic control (2), flow nipple (3), actuator (4), conversion electromagnetic valve (5), high-speed electromagnetic valve (6) and level pressure oil sources (7).
In described system, provide stable fuel pressure by level pressure oil sources (7) to electrohydraulic control (2), actuator (4) and high-speed electromagnetic valve (6); Conversion electromagnetic valve (5) connects electrohydraulic control (2) and high-speed electromagnetic valve (6); Conversion electromagnetic valve (5) and high-speed electromagnetic valve (6) are connected to actuator (4), carry out flow or Stress control to actuator (4); Actuator (4), conversion electromagnetic valve (5) and high-speed electromagnetic valve (6) connecting joint stem bar (3); Electrohydraulic control (2) and flow nipple (3) oil return flow into low pressure source (1); The master control passage that electrohydraulic control (2) is described system, the backup path that high-speed electromagnetic valve (6) is described system, conversion electromagnetic valve open in usual (5) is for the switching between master control passage and backup path.
In normal operation, during system works, outside level pressure oil sources (7) provides stable hydraulic environment to electrohydraulic control (2), electrohydraulic control (2) is as the master control passage of electric liquid converting member isomery standby system, high-speed electromagnetic valve (6), as backup path, directly realizes switching between master control backup path by conversion electromagnetic valve open in usual (5).During working control, send control current signal by electronic controller to the electrohydraulic control (2) in electric liquid converting member isomery standby system and carry out electric liquid conversion, realize the output flow or the pressure that change electrohydraulic control (2) fast, adjustment actuating mechanism (4) is mobile, with actuator (4) rigidly connected LVDT the position feedback of actuation mechanism to electronic controller, form master control closed-loop system.
When electrohydraulic control (2) breaks down, send voltage signal by electronic controller to conversion electromagnetic valve open in usual (5), carry out electric liquid conversion, realize switching between master control backup path.Electronic controller sends pulse-width signal to high-speed electromagnetic valve (6) simultaneously, carry out electric liquid conversion, realize control flow or the pressure of quick high-speed electromagnetic valve (6), simultaneously by the auxiliary adjustment of flow nipple, adjustment actuating mechanism (4) is mobile, with actuator (4) rigidly connected LVDT the position feedback of actuation mechanism to electronic controller, form master control closed-loop system.
Claims (1)
1. an electric liquid converting member isomery standby system, comprises low pressure source (1), electrohydraulic control (2), flow nipple (3), actuator (4), conversion electromagnetic valve (5), high-speed electromagnetic valve (6) and level pressure oil sources (7);
In described system, provide stable fuel pressure by level pressure oil sources (7) to electrohydraulic control (2), actuator (4) and high-speed electromagnetic valve (6); Conversion electromagnetic valve (5) connects electrohydraulic control (2) and high-speed electromagnetic valve (6); Conversion electromagnetic valve (5) and high-speed electromagnetic valve (6) are connected to actuator (4), carry out flow or Stress control to actuator (4); Actuator (4), conversion electromagnetic valve (5) and high-speed electromagnetic valve (6) connecting joint stem bar (3); Electrohydraulic control (2) and flow nipple (3) oil return flow into low pressure source (1); The master control passage that electrohydraulic control (2) is described system, the backup path that high-speed electromagnetic valve (6) is described system, conversion electromagnetic valve open in usual (5) is for the switching between master control passage and backup path;
In work, when electrohydraulic control (2) breaks down, send voltage signal by the electronic controller of motor to conversion electromagnetic valve open in usual (5), carry out electric liquid conversion, realize the switching between master control passage and backup path; Electronic controller sends pulse-width signal to high-speed electromagnetic valve (6) simultaneously, carry out electric liquid conversion, change output flow or the pressure of high-speed electromagnetic valve (6), adjustment actuating mechanism (4) is mobile, with actuator (4) rigidly connected LVDT the position feedback of actuator (4) to electronic controller, the auxiliary voltage stabilizing that flow nipple (3) carries out described system regulates, and described various parts oil return flows into low pressure source (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510737584.5A CN105443248A (en) | 2015-11-03 | 2015-11-03 | Standby system with electro-hydraulic conversion components of different structures |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510737584.5A CN105443248A (en) | 2015-11-03 | 2015-11-03 | Standby system with electro-hydraulic conversion components of different structures |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105443248A true CN105443248A (en) | 2016-03-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510737584.5A Pending CN105443248A (en) | 2015-11-03 | 2015-11-03 | Standby system with electro-hydraulic conversion components of different structures |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105443248A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1644934A (en) * | 2004-12-31 | 2005-07-27 | 杭州和利时自动化有限公司 | Self-capacitance electrohydraulic actuator and integrated oil path block |
| CN101539218A (en) * | 2008-09-19 | 2009-09-23 | 上海汇益液压控制系统工程有限公司 | Control module of high-pressure bypass pressure and temperature reducing valve actuating mechanism |
| CN101865184A (en) * | 2009-04-14 | 2010-10-20 | 上海汇益液压控制系统工程有限公司 | Direct-drive redundant hydraulic system for servomotor |
| CN201636098U (en) * | 2010-03-30 | 2010-11-17 | 上海电气电站设备有限公司 | EH hydraulic servomotor of mega small machine hydraulic system |
| CN201786395U (en) * | 2010-09-20 | 2011-04-06 | 上海电气电站设备有限公司 | Oil servo motor of steam valve for steam turbine |
| US20110173988A1 (en) * | 2008-11-13 | 2011-07-21 | Sweet David H | Adaptive fail-fixed system for fadec controlled gas turbine engines |
| CN102268497A (en) * | 2011-07-12 | 2011-12-07 | 西安陕鼓动力股份有限公司 | Safety control method for TRT (Blast Furnace Top Gas Recovery Turbine Unit) fixed blade servo control system |
| CN103148041A (en) * | 2013-03-07 | 2013-06-12 | 北京理工大学 | Energy-saving active/passive load double electrohydraulic servo valve control system and control method thereof |
| CN103939406A (en) * | 2014-02-24 | 2014-07-23 | 中国人民解放军空军工程大学 | Hot backup dual-redundancy electro-hydraulic servo valve control system based on pipeline fluid parameter design |
-
2015
- 2015-11-03 CN CN201510737584.5A patent/CN105443248A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1644934A (en) * | 2004-12-31 | 2005-07-27 | 杭州和利时自动化有限公司 | Self-capacitance electrohydraulic actuator and integrated oil path block |
| CN101539218A (en) * | 2008-09-19 | 2009-09-23 | 上海汇益液压控制系统工程有限公司 | Control module of high-pressure bypass pressure and temperature reducing valve actuating mechanism |
| US20110173988A1 (en) * | 2008-11-13 | 2011-07-21 | Sweet David H | Adaptive fail-fixed system for fadec controlled gas turbine engines |
| CN101865184A (en) * | 2009-04-14 | 2010-10-20 | 上海汇益液压控制系统工程有限公司 | Direct-drive redundant hydraulic system for servomotor |
| CN201636098U (en) * | 2010-03-30 | 2010-11-17 | 上海电气电站设备有限公司 | EH hydraulic servomotor of mega small machine hydraulic system |
| CN201786395U (en) * | 2010-09-20 | 2011-04-06 | 上海电气电站设备有限公司 | Oil servo motor of steam valve for steam turbine |
| CN102268497A (en) * | 2011-07-12 | 2011-12-07 | 西安陕鼓动力股份有限公司 | Safety control method for TRT (Blast Furnace Top Gas Recovery Turbine Unit) fixed blade servo control system |
| CN103148041A (en) * | 2013-03-07 | 2013-06-12 | 北京理工大学 | Energy-saving active/passive load double electrohydraulic servo valve control system and control method thereof |
| CN103939406A (en) * | 2014-02-24 | 2014-07-23 | 中国人民解放军空军工程大学 | Hot backup dual-redundancy electro-hydraulic servo valve control system based on pipeline fluid parameter design |
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Application publication date: 20160330 |