CN200958458Y - Accident pressure-distributing valve of speed-adjusting system for connected valve hydraulic turbine with valve-core opening fixed - Google Patents
Accident pressure-distributing valve of speed-adjusting system for connected valve hydraulic turbine with valve-core opening fixed Download PDFInfo
- Publication number
- CN200958458Y CN200958458Y CNU2006200992370U CN200620099237U CN200958458Y CN 200958458 Y CN200958458 Y CN 200958458Y CN U2006200992370 U CNU2006200992370 U CN U2006200992370U CN 200620099237 U CN200620099237 U CN 200620099237U CN 200958458 Y CN200958458 Y CN 200958458Y
- Authority
- CN
- China
- Prior art keywords
- valve
- port
- cartridge
- communicated
- cartridge valve
- 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.)
- Expired - Lifetime
Links
Images
Classifications
-
- 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
Landscapes
- Servomotors (AREA)
Abstract
The utility model provides an accident distributing valve of a cartridge valve type water turbine speed control system with a fixed valve core opening, and is composed of an electromagnet ball valve (5), a hydrodynamic valve (6) and four cartridge valves (1), (2), (3) and (4), which are inserted in an integrated piece, and are formed by connection through the internal channel of the integrated piece, as well as four cartridge valves (1), (2), (3) and (4), connected be two groups of two-position three-way valves, of which the pressure oil PQ port of the electromagnet ball valve (5) is used as the valve port for communicating with a mechanical hydraulic overdrive, and the oil return port TQ of the electromagnet ball valve (5) is used as the valve port for communicating an oil return tank, and the AQ port of the electromagnet ball valve (5) is communicated with the control port (KY) of the hydrodynamic valve (6). The pressure oil port (PY) of the hydrodynamic valve (6) is used as the valve port for communicating a pressure oil tank and the (TY) of the hydrodynamic valve (6) is communicated with the oil return tank. A ring chamber (8) is arranged between the external round of the four cartridge inserted valve cores and the integrated piece, and the ring chamber (8) is provided with a positioning port (DW) outside, to ensure the valve core fixing on the complete on and off switch position.
Description
Technical field
The utility model relates to the emergency distributing valve of the fixing cartridge valve formula water turbine governing system of a kind of valve core opening.The accident protection equipment that belongs to the water turbine governing system of large-scale hydroelectric power station.
Background technique
Water turbine governing systematic failures voltage distribution valve both domestic and external in the past all is to adopt sliding valve structure, generally is made up of cast steel body, lining, sliding plug and control mechanism etc.When the speed control system of hydraulic generator unit is malfunctioning (main control valve is because of the jam tripping), after control system detects main control valve tripping fault, send instruction to emergency distributing valve, emergency distributing valve moves immediately, cut off the oil circuit of main control valve to main servomotor, make pressure oil enter the pass pusher side of main servomotor through emergency distributing valve, simultaneously, the beginning to speak of main servomotor through the emergency distributing valve oil extraction.So main servomotor is closed rapidly, force the hydraulic generator unit to be shut down, prevented the major accident that unit flies to escape and causes.It is last pipe protection device of hydraulic generator unit.Because emergency distributing valve both domestic and external all was to adopt sliding valve structure in the past, main constituent elements is off-gauge workpiece, complex structure not only, and difficulty of processing is big, and is failure to actuate for a long time jam easily takes place, and loses protective action.In addition, when the valve plug of guiding valve and the gap between the valve pocket are normally moved, inevitably understand leakage of oil, and make the zero drift of hydrogovernor.
Summary of the invention
The purpose of this utility model is the nonstandard problem that solves emergency distributing valve, design a kind of emergency distributing valve that adopts the water turbine governing system of general hydraulic parts, a kind of simple in structure, reliable operation, the emergency distributing valve of the cartridge valve formula water turbine governing system that the valve core opening of good seal performance is fixing.
The technical solution of the utility model:
The emergency distributing valve of the cartridge valve formula water turbine governing system that valve core opening of the present utility model is fixing comprises the Solenoid ball valve 5 of a band handle, a hydraulic operated valve 6, four cartridge valves 1,2,3,4 connect into two groups of two position three-way valves, four cartridge valves 1,2 are embedded in the integrated package 10,3,4 are embedded in the integrated package 11, connect by the integrated package inner passage, the pressure oil PQ mouth of Solenoid ball valve 5 is as the valve port that is communicated with the mechanical-hydraulic overdrive, the oil return inlet T Q of Solenoid ball valve 5 is as the valve port that is communicated with oil sump tank, the AQ mouth of Solenoid ball valve 5 is communicated with the control port KY of hydraulic operated valve 6, the pressure hydraulic fluid port PY of hydraulic operated valve 6 is as the valve port that is communicated with pressure oil tank, the TY of hydraulic operated valve 6 leads to oil sump tank, an annular chamber 8 is arranged between four plug-in mounting spool peripheries and integrated package, annular chamber 8 externally has positioning port DW, the actuator port AY of hydraulic operated valve 6 respectively with cartridge valve 1,3 control mouth C1, C3 and cartridge valve 2,4 positioning port DW2, DW4 is communicated with, the actuator port BY of hydraulic operated valve 6 respectively with cartridge valve 2,4 control mouth C2, C4 and cartridge valve 1,3 positioning port DW1, DW3 is communicated with, and cartridge valve 1 is the plug-in unit of belt spool position-limited lever; The oil return inlet T that the blue F1 of the A1 mouth connection of cartridge valve 1 links to each other as oil sump tank, the B1 of cartridge valve 1,2, B2 mouth connect the blue F2 conduct of valve and connect the control mouth that main servomotor begins to speak to link to each other; The A2 mouth of cartridge valve 2 meets the blue F3 of valve as the control mouth of beginning to speak to link to each other with main control valve, the B3 of cartridge valve 3,4, B4 mouth and the blue F5 of connection as and main servomotor close the chamber control mouth that links to each other; The blue F4 of the A3 mouth connection of cartridge valve 3 is as the pressure hydraulic fluid port that links to each other with pressure oil P, and the blue F6 of the A4 mouth connection of cartridge valve 4 is as the return opening that links to each other with oil return inlet T, and cartridge valve 1 is the plug-in unit of belt spool position-limited lever.
Be provided with one-way throttle valve 7 between control mouth C2, the C4 of the actuator port BY of hydraulic operated valve 6 and cartridge valve 2,4, the keying speed of control cartridge valve is guaranteed two groups of actions that cartridge valve is correct.
Advantage advantage of the present utility model: this accident voltage distribution valve has increased an annular chamber in plug-in mounting spool periphery, and when cartridge valve was opened, this annular chamber forced spool can only be positioned fully open position through the automatic cut-in pressure oil of positioning port DW.When cartridge valve was closed, this annular chamber was connected oil extraction automatically.Thereby stopped the unstable period that causes when spool is partly opened, and that is to say, no matter be big flow or small flow, this accident voltage distribution valve can both guarantee that the plug-in mounting spool is fixed on standard-sized sheet or the complete shut-down position.Valve core opening can reliably be controlled; Switch speed is easy to control; Make things convenient for function integrated; Satisfy big traffic requirement easily; Depended on pressure oil is controlled valve element position, can reduce pollutant effects.
Description of drawings
Fig. 1 is a principle schematic of the present utility model;
Fig. 2 has an annular chamber and external positioning port DW schematic representation between two plug-in mounting spool peripheries and integrated package;
Fig. 3 is the B-B sectional view of Fig. 2;
Fig. 4 is a use connection diagram of the present utility model.
Embodiment
As Fig. 1, figure, Fig. 3:
The emergency distributing valve of the cartridge valve formula water turbine governing system that valve core opening of the present utility model is fixing comprises the Solenoid ball valve 5 of a band handle, a hydraulic operated valve 6, four cartridge valves 1,2,3,4 connect into two groups of two position three-way valves, four cartridge valves 1,2 are embedded in the integrated package 10,3,4 are embedded in the integrated package 11, connect by the integrated package inner passage, the pressure oil PQ mouth of Solenoid ball valve 5 is as the valve port that is communicated with the mechanical-hydraulic overdrive, the oil return inlet T Q of Solenoid ball valve 5 is as the valve port that is communicated with oil sump tank, the AQ mouth of Solenoid ball valve 5 is communicated with the control port KY of hydraulic operated valve 6, the pressure hydraulic fluid port PY of hydraulic operated valve 6 is as the valve port that is communicated with pressure oil tank, the TY of hydraulic operated valve 6 leads to oil sump tank, an annular chamber 8 is arranged between four plug-in mounting spool peripheries and integrated package, annular chamber 8 externally has positioning port DW, the actuator port AY of hydraulic operated valve 6 respectively with cartridge valve 1,3 control mouth C1, C3 and cartridge valve 2,4 positioning port DW2, DW4 is communicated with, the actuator port BY of hydraulic operated valve 6 respectively with cartridge valve 2,4 control mouth C2, C4 and cartridge valve 1,3 positioning port DW1, DW3 is communicated with, and cartridge valve 1 is the plug-in unit of belt spool position-limited lever; The oil return inlet T that the blue F1 of the A1 mouth connection of cartridge valve 1 links to each other as oil sump tank, the B1 of cartridge valve 1,2, B2 mouth connect the blue F2 conduct of valve and connect the control mouth that main servomotor begins to speak to link to each other; The A2 mouth of cartridge valve 2 meets the blue F3 of valve as the control mouth of beginning to speak to link to each other with main control valve, the B3 of cartridge valve 3,4, B4 mouth and the blue F5 of connection as and main servomotor close the chamber control mouth that links to each other; The blue F4 of the A3 mouth connection of cartridge valve 3 is as the pressure hydraulic fluid port that links to each other with pressure oil P, and the blue F6 of the A4 mouth connection of cartridge valve 4 is as the return opening that links to each other with oil return inlet T, and cartridge valve 1 is the plug-in unit of belt spool position-limited lever 1.1.
Be provided with one-way throttle valve 7 between control mouth C2, the C4 of the actuator port BY of hydraulic operated valve 6 and cartridge valve 2,4, the keying speed of control cartridge valve is guaranteed two groups of actions that cartridge valve is correct.
As Fig. 2, Fig. 3: this accident voltage distribution valve has increased an annular chamber HXQ in standard cartridge valve CV spool periphery, and when cartridge valve was opened, this annular chamber forced spool can only be positioned fully open position through the automatic cut-in pressure oil of positioning port DW.When cartridge valve was closed, this annular chamber was connected oil extraction automatically.Thereby stopped the unstable period that causes when spool is partly opened, and that is to say, no matter be big flow or small flow, this accident voltage distribution valve can both guarantee that the plug-in mounting spool is fixed on standard-sized sheet or the complete shut-down position.
Wherein cartridge valve the 2,3, the 4th, and pure direction feature card, cartridge valve 1 are the plug-in units of belt spool position-limited lever 1.1.
This accident voltage distribution valve has increased an annular chamber 1.1 in plug-in mounting spool periphery, and when cartridge valve was opened, this annular chamber forced spool can only be positioned fully open position through the automatic cut-in pressure oil of positioning port DW.When cartridge valve was closed, this annular chamber was connected oil extraction automatically.Thereby stopped the unstable period that causes when spool is partly opened, and that is to say, no matter be big flow or small flow, this accident voltage distribution valve can both guarantee that the plug-in mounting spool is fixed on standard-sized sheet or the complete shut-down position.
Fig. 4 is the connection diagram of using of the present utility model: each mouthful F1, F2, F3, F4, F5, F6 with valve all adopt flange to be example: during use, the blue F4 of main fuel feeding P connection, the blue F1 of oil return T connection, main control valve closes the blue F6 of chamber connection, the blue F3 of the connection of beginning to speak of main control valve, flange F5 connects the chamber, pass of main servomotor 12, and flange F2 connects beginning to speak of main servomotor 12, and the PQ mouth of Solenoid ball valve 5 is communicated with the oil-feed port of mechanical-hydraulic overdrive 13.The 14th, one-way valve.
Water turbine is overrun and during the main control valve tripping, the line Bao Dedian of Solenoid ball valve 5,5 actions; The BY mouth pressure=P of place of hydraulic operated valve 6, AY mouth place pressure=0 is controlled the effect of oily P, and 2,4 keep blocking, and A2 and B2 cut off, and A4 and B4 cut off, and main control valve is cut off to the oil circuit of servomotor; Simultaneously, control mouthful C1, C3 place pressure=0, DW1, the pressure=P of DW3 place, 1,3 keep reliable opening state, and A1 and B1 are logical, and A3 and B3 are logical, pressure oil enters servomotor 12 shutdown chambeies through 3, the oil in servomotor start chamber flows back to fuel tank by 1, adjusts 1 valve element position, the pass motor speed of can adjusting by position-limited lever 1.1.The pressure hydraulic fluid port Solenoid ball valve 5 of Solenoid ball valve 5 can be electronic also can be by operator on duty's manually-operable.
During the water turbine proper functioning, the control of the hydraulic operated valve 6 oil AY mouth pressure=P of place, BY mouth place pressure=0, because be controlled the effect of oily P, 1,3 keep blocking, and A1 and B1 cut off, and A3 and B3 cut off; Simultaneously, because of the pressure of controlling mouthful C2, C4 is zero, 2,4 are held open state, and the pressure oil of beginning to speak of main control valve is by plug-in unit 2 and servomotor 12 connections, the pass cavity pressure oil of main control valve is connected by plug-in unit 4 and servomotor, and servomotor is proper functioning under the effect of main control valve.
Core of the present utility model is to adopt band location hydraulic fluid port and annular control chamber, and therefore the emergency distributing valve that general hydraulic parts is integrated, adopts the cartridge valve formula emergency distributing valve of band location hydraulic fluid port and annular control chamber all to belong to protection domain of the present utility model.
Claims (2)
1. the emergency distributing valve of the fixing cartridge valve formula water turbine governing system of a valve core opening, comprise cartridge valve, Solenoid ball valve, it is characterized in that: the Solenoid ball valve (5) that comprises a band handle, a hydraulic operated valve (6), four cartridge valves (1), (2), (3), (4) be embedded in the integrated package, connect and compose by the integrated package inner passage, four cartridge valves (1), (2), (3), (4) connect into two groups of two position three-way valves, the pressure oil (PQ) of Solenoid ball valve (5) mouthful valve port that conduct is communicated with the mechanical-hydraulic overdrive, the return opening (TQ) of Solenoid ball valve (5) is as the valve port that is communicated with oil sump tank, (AQ) of Solenoid ball valve (5) mouthful is communicated with the control port (KY) of hydraulic operated valve (6), the pressure hydraulic fluid port (PY) of hydraulic operated valve (6) is as the valve port that is communicated with pressure oil tank, (TY) of hydraulic operated valve (6) leads to oil sump tank, an annular chamber (8) is arranged between four plug-in mounting spool peripheries and integrated package, annular chamber (8) externally has positioning port (DW), the actuator port (AY) of hydraulic operated valve (6) respectively with cartridge valve (1), (3) control mouth (C1), (C3) and cartridge valve (2), (4) positioning port (DW2), (DW4) be communicated with, the actuator port (BY) of hydraulic operated valve (6) respectively with cartridge valve (2), (4) control mouth (C2), (C4) and cartridge valve (1), (3) positioning port (DW1), (DW3) be communicated with, cartridge valve (1) is the plug-in unit of belt spool position-limited lever; (A1) of cartridge valve (1) mouthful of return opening (T) that connection orchid (F1) links to each other as oil sump tank, (B1) of cartridge valve (1), (2), (B2) mouth connect valve orchid (F2) conduct and connect the control mouth that main servomotor begins to speak to link to each other; (A2) of cartridge valve (2) mouth connects valve orchid (F3) as the control mouth of beginning to speak to link to each other with main control valve, (B3) of cartridge valve (3), (4), (B4) mouthful with the blue F5 of connection as and main servomotor close the chamber control mouth that links to each other; (A3) of cartridge valve (3) mouthful of connection orchid (F4) is as the pressure hydraulic fluid port that links to each other with pressure oil (P), and (A4) of cartridge valve (4) mouthful of connection orchid (F6) is as the return opening that links to each other with oil return inlet T, and cartridge valve (1) is the plug-in unit of belt spool position-limited lever (1.1).
2. the emergency distributing valve of the cartridge valve formula water turbine governing system that valve core opening according to claim 1 is fixing is characterized in that: be provided with one-way throttle valve (7) between the control mouth (C2) of the actuator port (BY) of hydraulic operated valve (6) and cartridge valve (2), (4), (C4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200992370U CN200958458Y (en) | 2006-09-29 | 2006-09-29 | Accident pressure-distributing valve of speed-adjusting system for connected valve hydraulic turbine with valve-core opening fixed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200992370U CN200958458Y (en) | 2006-09-29 | 2006-09-29 | Accident pressure-distributing valve of speed-adjusting system for connected valve hydraulic turbine with valve-core opening fixed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200958458Y true CN200958458Y (en) | 2007-10-10 |
Family
ID=38785338
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006200992370U Expired - Lifetime CN200958458Y (en) | 2006-09-29 | 2006-09-29 | Accident pressure-distributing valve of speed-adjusting system for connected valve hydraulic turbine with valve-core opening fixed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200958458Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102536619A (en) * | 2012-01-06 | 2012-07-04 | 天津电气传动设计研究所 | Pressure regulating valve of water turbine volute casing |
| CN108226679A (en) * | 2018-01-10 | 2018-06-29 | 云南电网有限责任公司电力科学研究院 | A kind of adjustable test method of servomotor reaction time constant and device |
| CN109139350A (en) * | 2018-09-29 | 2019-01-04 | 东方电机控制设备有限公司 | A kind of overspeed protection and volume control device for hydroenergy storage station |
| CN109139352A (en) * | 2018-11-06 | 2019-01-04 | 贵州电网有限责任公司 | A kind of judgement hydrogovernor master matches the device and measurement method of tripping |
-
2006
- 2006-09-29 CN CNU2006200992370U patent/CN200958458Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102536619A (en) * | 2012-01-06 | 2012-07-04 | 天津电气传动设计研究所 | Pressure regulating valve of water turbine volute casing |
| CN102536619B (en) * | 2012-01-06 | 2014-01-29 | 天津电气传动设计研究所 | Pressure regulating valve of water turbine volute casing |
| CN108226679A (en) * | 2018-01-10 | 2018-06-29 | 云南电网有限责任公司电力科学研究院 | A kind of adjustable test method of servomotor reaction time constant and device |
| CN109139350A (en) * | 2018-09-29 | 2019-01-04 | 东方电机控制设备有限公司 | A kind of overspeed protection and volume control device for hydroenergy storage station |
| CN109139350B (en) * | 2018-09-29 | 2024-01-26 | 东方电气自动控制工程有限公司 | Overspeed protection and flow control device for pumped storage power station |
| CN109139352A (en) * | 2018-11-06 | 2019-01-04 | 贵州电网有限责任公司 | A kind of judgement hydrogovernor master matches the device and measurement method of tripping |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201100474Y (en) | Energy-storage electrolysis joint valve gate executor | |
| CN100494697C (en) | Self-capacitance electrohydraulic executor | |
| CN102434372B (en) | Small-scale speed regulator comprehensive adjusting device based on hydraulic pressure integration technology | |
| CN200958458Y (en) | Accident pressure-distributing valve of speed-adjusting system for connected valve hydraulic turbine with valve-core opening fixed | |
| CN2864145Y (en) | Multifunctional actuating mechanism for hydraulic control type main distributing valve | |
| CN200971998Y (en) | Hydraulic control unit of residual pressure turbine emergency cut-off valve shared by two blast furnaces | |
| CN106438187A (en) | Working condition control device in pump turbine speed adjusting system and control method of working condition control device | |
| CN110593965B (en) | Main valve shutoff valve group, control method thereof and steam turbine | |
| CN201363168Y (en) | Steam turbine oil line controlling device | |
| CN201606195U (en) | Digital intelligent braking system of MW-level wind generating set | |
| CN102734353B (en) | Brake hydraulic station, brake device, lifting equipment and engineering machinery | |
| CN201100473Y (en) | Spring energy storage electrolysis joint valve gate executor | |
| CN212428961U (en) | Emergency trip control mechanism of DEH system | |
| CN206071793U (en) | Working condition control device in a kind of pump turbine governing system | |
| CN201517654U (en) | Automatic electro-hydraulic resetting device | |
| CN205841927U (en) | A kind of emergency cut-off valve control system | |
| CN201801484U (en) | Hydraulic switch of integrated coke oven | |
| CN201155420Y (en) | Hydroturbine emergency stop device based on cartridge valve | |
| CN112302735B (en) | Steam turbine main valve auxiliary system and control method thereof | |
| CN215633164U (en) | Integrated overspeed protection device | |
| CN100370115C (en) | Servomotor oil circuit regulating valve assembly of steam turbine regulating system | |
| CN2729468Y (en) | Energy storage electrohydraulic linkage actuator for quickly closing valve | |
| CN203065074U (en) | Winding motor hydraulic system and rotary drilling rig | |
| CN104197080A (en) | Hydraulic control system for quick opening and closing of valve | |
| CN208011030U (en) | A kind of water intake ball valve hydraulic control system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20071010 |
|
| EXPY | Termination of patent right or utility model |