CN2871901Y - Speed adjuster with displacement and flow inputting redundant control - Google Patents
Speed adjuster with displacement and flow inputting redundant control Download PDFInfo
- Publication number
- CN2871901Y CN2871901Y CNU2005200993218U CN200520099321U CN2871901Y CN 2871901 Y CN2871901 Y CN 2871901Y CN U2005200993218 U CNU2005200993218 U CN U2005200993218U CN 200520099321 U CN200520099321 U CN 200520099321U CN 2871901 Y CN2871901 Y CN 2871901Y
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- CN
- China
- Prior art keywords
- displacement
- control
- flow input
- valve
- electro
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- 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.)
- Expired - Fee Related
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Abstract
The utility model provides a displacement and flow input redundant control governor, comprising a displacement output member, a displacement input member and an electrical control unit. A control port of the flow input member is communicated with the control cavity of the displacement output member, and a pressure oil mouth of the flow input member is communicated with a middle-position valve pressure oil port and a constant pressure cavity of the displacement output member. An operating-condition switch valve is arranged in the oil route between the control port of the flow input member and the control cavity of the displacement output member, the displacement output member adopts the main pressure distributing valve, the flow input member adopts the proportional servo valve, the displacement input member adopts the displacement type or a servo-cylinder type electro-hydraulic convertor. The utility model adopts the displacement and flow input redundant to control the same set output member, when a set of the electro-hydraulic converting member is to operate the guide valve and the pressure distributing valve, the other set of the electro-hydraulic converting member is used as reservation, when any set of electro-hydraulic converting member is malfunctioned, the control governor will automatically switch to the other set of the electro-hydraulic converting member without any interference to the system.
Description
Technical field
The utility model relates to the speed regulator of a kind of displacement and flow input Redundant Control, it is same as the Hydrawlic Slave System of control elements to belong to displacement and flow input Redundant Control, the microcomputer-based hydro-turbine governor that is used for big-and-middle-sized hydroelectric power station is the displacement amount of output element with electrical signal conversion.
Background technique
Microcomputer-based hydro-turbine governor in big-and-middle-sized hydroelectric power station, the electricity/liquid converter that is used for electrical signal conversion and is the displacement amount of output element has dual mode, and a kind of is displacement input electricity/liquid conversion and control mode, and another kind is flow electricity/liquid conversion and control mode.When electricity/liquid converting member fault, system can't normal regulating.The user also can't change intrinsic control mode as required.
Summary of the invention
The purpose of this utility model is with the redundant one of two kinds of methods, designs the speed regulator of a kind of displacement and flow input Redundant Control.
The technical solution of the utility model: the speed regulator of displacement of the present utility model and flow input Redundant Control comprises displacement output element, displacement input element and automatically controlled part, also have the control mouth of flow input element to be communicated with the control chamber of displacement output element, the pressure hydraulic fluid port of flow input element is communicated with the meta valve pressure hydraulic fluid port and the common pressure chamber of displacement output element.
The speed regulator of described displacement and flow input Redundant Control is equipped with the operating mode switching valve on the control mouth of flow input element and oil circuit that the control chamber of displacement output element is communicated with.
The speed regulator of described displacement and flow input Redundant Control, the displacement output element adopts main control valve.
The speed regulator of described displacement and flow input Redundant Control, the flow input element adopts proportional servo valve.
The speed regulator of described displacement and flow input Redundant Control, the displacement input element adopts displacement type electro-control converter or servocylinder type electro-control converter.
Advantage of the present utility model: the utility model adopts the controlling schemes of displacement and the same set of output element of flow input Redundant Control.When cover electricity/liquid converting member operation guide valve and a voltage distribution valve wherein, another set of electricity/liquid converting member is standby.Can automatically switch to another set of electricity/liquid converting member when a cover electricity/liquid converting member fault wherein, system does not have disturbance.Have outage automatically multiple in function, multiple in the precision height, active/standby with switching no disturbance, the no disturbance of hand/automatic switchover, easily adjust zero point, simple and reliable for structure, displacement is imported control mode to oily no requirement (NR), no oil consumption, temperature influence etc. not.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
The speed regulator of displacement of the present utility model and flow input Redundant Control comprises displacement output element, displacement input element and automatically controlled part, also have the control mouth of flow input element to be communicated with the control chamber of displacement output element, the pressure hydraulic fluid port of flow input element is communicated with the meta valve pressure hydraulic fluid port and the common pressure chamber of displacement output element.
Provide a specific embodiment below:
As Fig. 1: present embodiment is not have oily electro-control converter (displacement input) and proportional servo valve (flow input) is the Hydrawlic Slave System of the same voltage distribution valve piston of Redundant Control (by control elements) with the micro motor formula, what the displacement input element adopted is that the micro motor type does not have oily electro-control converter 1, not having oily electro-control converter 1 is connected with main control valve 3, also have the control mouth A of proportional servo valve 4 to be communicated with control chamber (epicoele) 3-1 of main control valve 3 simultaneously, the pressure hydraulic fluid port P of proportional servo valve is communicated with the meta valve pressure hydraulic fluid port 3-2 and the common pressure chamber 3-3 of main control valve 3.
On the control mouth A of proportional servo valve 4 and pipeline that control chamber (epicoele) 3-1 of main control valve is communicated with, operating mode switching valve 2 is housed.
5 is emergency shutdown solenoid valves among the figure, the 6th, and pressure gauge, the 7th, twin filter, the 8th, automatically controlled part.
The piston 3-4 of main control valve 3 is by nothing oil electro-control converter (displacement input) control of micro motor 1-1 control.The micro motor formula does not have manually-operable wheel 1-2 on the oily electro-control converter can also realize that unit manually controls (can be considered the triple redundance scheme).1-3 is a ball wire bar pair, and 1-4 is the upper spring that resets, and 1-5 is again middle positioning block, and 3-5 is that the master joins the meta piston, and 1-7 is the lower spring that resets.
Working procedure: when main control valve 3 is subjected to proportional servo valve 4 flows input control, there is not the control micro motor 1-1 outage of oily electro-control converter 1, ball wire bar pair 1-3 in multiple upper spring 1-4 and multiple under the common effect of lower spring 1-7, be positioned on the meta by positioning block 1-5 in multiple, the master joins meta piston 3-5 and also is fixed on meta.The continuous output control signal of being assigned to by electric control part converts corresponding flow to through proportional servo valve 4, enter main control valve control chamber (epicoele) 3-1 and meta valve and form difference in flow [when proportional servo valve during to voltage distribution valve control chamber (epicoele) injection pressure oil, lead and join the logical oil extraction of meta valve, it is less only to lead the flow of joining the meta valve; When proportional servo valve is connected oil extraction by voltage distribution valve control chamber (epicoele), the meta valve leads to pressure oil, it is also less only to lead the flow of joining the meta valve], make upper and lower the moving of main control valve piston and realize that closing (opening) machine chamber to servomotor joins oil, the stroke of flow extent (size, the direction of flow feedback) decision main control valve piston.When proportional servo valve 4 faults, automatically controlled part 8 automatically switches to the control mode that the micro motor formula does not have oily electro-control converter, and sends alarm signal simultaneously, and proportional servo valve (flow input) is cut.
The continuous output control signal of assigning to by electric control part, ball wire bar pair 1-3 through control micro motor 1-1 and no oily electro-control converter converts corresponding displacement to, meta piston 3-5 since the effect servo-actuated all the time of multiple medi-spring 1-4 and 1-7 in ball wire bar pair and multiple automatically in install, as meta valve piston 3-5 when upwards (descending) is mobile, main control valve control chamber (epicoele) 3-1 connects row's (pressure) oil, the main control valve piston is (descending) motion upwards, realizes that main control valve closes (opening) machine chamber to servomotor and joins oil.Though be provided with operating mode switching valve 2 in the Hydrawlic Slave System of the Redundant Control of setting forth in the utility model, do not establish the operating mode switching valve and also belong to the utility model protection domain.
Displacement input element of the present utility model can also adopt as displacement type electro-control converter, servocylinder type electro-control converter etc., and its connection is identical.
Flow input element of the present utility model can also adopt as flow type electro-control converter, Proportional valve, digital valve etc., and its connection is identical.
Though output element of the present utility model is the main control valve piston, as long as displacement output element (as auxiliary receiver piston, servocylinder piston, servomotor piston etc.) all is suitable for the utility model.
Core of the present utility model is to adopt displacement and the same set of output element of flow input Redundant Control.When cover electricity/liquid converting member operation guide valve and a voltage distribution valve wherein, another set of electricity/liquid converting member is standby.Therefore, no matter how concrete element is replaced, and all belongs to protection domain of the present utility model.
Claims (5)
1. the speed regulator of displacement and flow input Redundant Control, comprise displacement output element, displacement input element and automatically controlled part, it is characterized in that: have the control mouth of flow input element to be communicated with the control chamber of displacement output element, the pressure hydraulic fluid port of flow input element is communicated with the meta valve pressure hydraulic fluid port and the common pressure chamber of displacement output element.
2. the speed regulator of displacement according to claim 1 and flow input Redundant Control is characterized in that: on the control mouth of flow input element and oil circuit that the control chamber of displacement output element is communicated with the operating mode switching valve is housed.
3. the speed regulator of displacement according to claim 1 and 2 and flow input Redundant Control, it is characterized in that: the displacement output element adopts main control valve.
4. the speed regulator of displacement according to claim 1 and 2 and flow input Redundant Control, it is characterized in that: the flow input element adopts proportional servo valve.
5. the speed regulator of displacement according to claim 1 and 2 and flow input Redundant Control, it is characterized in that: the displacement input element adopts displacement type electro-control converter or servocylinder type electro-control converter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005200993218U CN2871901Y (en) | 2005-12-12 | 2005-12-12 | Speed adjuster with displacement and flow inputting redundant control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005200993218U CN2871901Y (en) | 2005-12-12 | 2005-12-12 | Speed adjuster with displacement and flow inputting redundant control |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2871901Y true CN2871901Y (en) | 2007-02-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2005200993218U Expired - Fee Related CN2871901Y (en) | 2005-12-12 | 2005-12-12 | Speed adjuster with displacement and flow inputting redundant control |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2871901Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103452746A (en) * | 2013-07-31 | 2013-12-18 | 国家电网公司 | Hydraulic turbine governor out-of-control signal diagnosis and control methods |
| CN104235423A (en) * | 2013-06-10 | 2014-12-24 | 陈镇汉 | High-pollution-resistance electro-hydraulic pressure distributing device |
-
2005
- 2005-12-12 CN CNU2005200993218U patent/CN2871901Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104235423A (en) * | 2013-06-10 | 2014-12-24 | 陈镇汉 | High-pollution-resistance electro-hydraulic pressure distributing device |
| CN104235423B (en) * | 2013-06-10 | 2017-02-08 | 陈镇汉 | High-pollution-resistance electro-hydraulic pressure distributing device |
| CN103452746A (en) * | 2013-07-31 | 2013-12-18 | 国家电网公司 | Hydraulic turbine governor out-of-control signal diagnosis and control methods |
| CN103452746B (en) * | 2013-07-31 | 2015-11-25 | 国家电网公司 | A kind of hydrogovernor out-of-control signal diagnosis and controlling method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070221 Termination date: 20141212 |
|
| EXPY | Termination of patent right or utility model |