CN201539353U - Integrated mechanical hydraulic control device for main distributing pressure valve of super-huge type hydrogovernor - Google Patents
Integrated mechanical hydraulic control device for main distributing pressure valve of super-huge type hydrogovernor Download PDFInfo
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- CN201539353U CN201539353U CN2009202286811U CN200920228681U CN201539353U CN 201539353 U CN201539353 U CN 201539353U CN 2009202286811 U CN2009202286811 U CN 2009202286811U CN 200920228681 U CN200920228681 U CN 200920228681U CN 201539353 U CN201539353 U CN 201539353U
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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
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Abstract
The utility model provides an integrated mechanical hydraulic control device for a main distributing pressure valve of a super-huge type hydrogovernor. The device comprises the main distributing pressure valve and the mechanical hydraulic control device, wherein the mechanical hydraulic control device comprises an electrohydraulic transformation part, a manual control part, an automatic control part, and an emergency shutting-down control part, the electrohydraulic transformation part adopts an electrohydraulic transformation device of the double-proportion valve redundancy; a first electrohydraulic servo proportion valve and a second electrohydraulic servo proportion valve are controlled by a proportion-valve function separated valve to be gated; a manual and automatic control valve is controlled by a manual/automatic function separated valve to be gated; the proportion-valve function separated valve is connected in series with the manual/automatic function separated valve and connected with a control chamber A and a control chamber B of the main distributing pressure valve through an emergency shutting-down valve after being gated; and a valve cap of the main distributing pressure valve is a pile-up valve cap, and a runner is formed in the pile-up valve cap and communicated with the integrated mechanical hydraulic control device at the left end of the upper part of the valve cap.
Description
Technical field
The utility model relates to a kind of super-huge hydrogovernor main control valve mechanical-hydraulic control gear, the main control valve that surpasses the giant turbine speed regulator of 300,000 KW especially for single-machine capacity, the pressure range that is suitable for is 2.5-6.3Mpa, and the main valve peak rate of flow is the main control valve of 202.5L/S.Belong to hydrogovernor hydraulic control field.
Background technique
In microcomputer governor, it mainly is with the proportional displacement that converts the speed regulator servomotor to of the output signal of microcomputer governor that the master of mechanical-hydraulic part joins valve, with enough big Thrust Control water distributor, the mechanical-hydraulic of microcomputer governor partly is the actuator of microcomputer governor, its control signal is weak, power is little, but its output gain is general bigger, is a system that power is very big.So big system to be accurately controlled, just closed loop control must be adopted.Therefore the machinery hydraulic system of microcomputer governor is a closed loop servo system.
Main control valve is a kind of guiding valve that plays control liquid flow path direction and size, why being called main control valve is because it is the guiding valve that finally plays control actuator (servomotor) effect in speed regulator, be used to control the stator of water turbine and the aperture of paddle, realize automatic adjusting and control the water wheels unit.
Generally use the diameter of main control valve piston or the grade of operating oil pressure for Large Speed Governor, characterize the size of its displacement volume, the main control valve of φ 250mm and 6.3Mpa is belonged to super-huge water turbine.
Hydrogovernor has experienced the development of various ways, and developing into electric hydraulic valve speed regulator from mechanical hydraulic governor is a big transformation, after this changes mainly at electric part over 40 years.But the main control valve as the power amplification parts is not substituted along with development of electronic technology, and on the contrary, it is as the requisite main valve member of electro-hydraulic servo device, and its function is developed.
Since the seventies, China has imported and exported Japan, Sweden, and the speed regulator of Austria etc. countries, their master joins to press and adopts workpiece, simultaneously with auxiliary receiver piston and main control valve or be integral.As far back as the eighties, my company has designed the integrated direct linkage type main control valve of KZT type piston, for maintenance provides great convenience with reference to this structure.
Development along with the water power cause, the appearance of particularly large-scale, super-huge water turbine, the large-scale water turbine speed regulator is had higher requirement, except that reliable, also require quiet, dynamic indicator is superior, it is zero failure that general hydroelectric power plant requires speed regulator, otherwise the fault that occurs may be catastrophic.
The experience of developing speed regulator and field adjustable for many years according to us as can be known because the on-the-spot cleanliness of hydraulic oil degree in China hydroelectric power plant is difficult to guarantee that therefore, the reliability that solves pilot stage is the focus that the industry is paid close attention to.Because large-scale water turbine speed regulator control mechanism inertia is big, speed of response is slow, and the response that therefore improves the speed regulator pilot stage is little to the response effect of whole system.Improving the dynamic response of whole system, mainly is the response that improves terminal amplifier stage, i.e. the response of main control valve and main servomotor.
Summary of the invention
The purpose of this utility model is the no exposed conduit that adopts, do not have and regulate the direct-connected of rod member, building blocks made up hydraulic pressure integrated technology and the direct feedback technique of hydraulic pressure design the super-huge hydrogovernor main control valve integrated form mechanical-hydraulic control gear of a kind of further raising control accuracy and speed of response.
The utility model is achieved through the following technical solutions: super-huge hydrogovernor main control valve integrated form mechanical-hydraulic control gear of the present utility model comprises main control valve and mechanical-hydraulic control gear, the mechanical-hydraulic control gear comprises electric liquid conversion portion, manual control part, automatic control section, emergency shutdown control section, its electric liquid conversion portion adopts the electric liquid conversion equipment of two Proportional valve redundancies, and the first electro-hydraulic servo Proportional valve and the second electro-hydraulic servo Proportional valve are controlled its sorting by Proportional valve function separating valve; Hand-operated direction valve is controlled its gating not by hand/automatic function separating valve, realizes hand/conversion automatically; Proportional valve function separating valve is connected with manual function separating valve, is connected with control chamber B with the control chamber A of main control valve by the emergency shutdown valve behind its gating; The valve gap of main control valve is integrated valve gap, has runner to be communicated with the integrated form mechanical-hydraulic control gear of valve gap top left end in integrated valve gap, integrated form mechanical-hydraulic control gear is integrated above-mentioned all valves except that main control valve.
Described super-huge hydrogovernor main control valve integrated form mechanical-hydraulic control gear, its main control valve pressure hydraulic fluid port P is connected with the duplex oil purifier, and the output of duplex oil purifier is connected with the mechanical-hydraulic control gear.
Described integrated form mechanical-hydraulic control gear comprises: the first electro-hydraulic servo Proportional valve, the second electro-hydraulic servo Proportional valve and Proportional valve function separating valve are installed on the Proportional valve integrated package, interconnect by inner flow passage; Manually on the integrated package hand-operated direction valve is installed, manual function separating valve is installed on hand/automatic integrated package, and the emergency shutdown solenoid valve is installed on the emergency shutdown integrated package; Proportional valve integrated package, manual integrated package, hand/automatic integrated package, emergency shutdown integrated package connect successively, and realize the due each other annexation of each valve by the runner in each integrated package; Last integrated form mechanical-hydraulic control gear is installed on the connecting plate, and pressure hydraulic fluid port P, oil return inlet T, control chamber A, the control chamber B of integrated form mechanical-hydraulic control gear arranged on the connecting plate; Connecting plate is connected with the integrated valve gap of main control valve, and the pressure hydraulic fluid port P on the connecting plate, oil return inlet T, control chamber A, control chamber B are corresponding with the valve port that integrated valve covers, and is connected with main control valve with runner in the valve body by the integrated valve gap of main control valve.
Described super-huge hydrogovernor main control valve integrated form mechanical-hydraulic control gear is equipped with the duplex oil purifier on the right of the integrated valve gap of main control valve, and the duplex oil purifier is connected with the P mouth of main control valve with runner on the valve body by integrated valve gap.
Advantage of the present utility model:
1, no pilot valve has been simplified the driving structure of main control valve, makes main control valve be reduced to the one-level guiding valve by the secondary guiding valve, has improved sensitivity and quick-action;
2, pilot stage adopts two Proportional valve redundant systems, has improved reliability;
3, designed unique hydraulic pressure multiple in device, simplified structure satisfies the needs of domestic electrical network;
4, the control valve of whole system is made up of the integrated package stack, and no exposed conduit, nothing are regulated rod member, guarantees the transmission of operation parts zero-clearance, no dead band, beautiful shape simultaneously., simple in structure, easy to adjust, adopted
Description of drawings
Fig. 1 is a control principle schematic representation of the present utility model.
Fig. 2 is an integrated morphology general illustration of the present utility model,
Fig. 3 is a mechanical-hydraulic control gear integrated morphology general illustration,
Fig. 4 is the left view of Fig. 3.
Fig. 5 is the B-B sectional structure schematic representation of Fig. 3.
Fig. 6 is that A Fig. 4 of Fig. 4 is Fig. 3.
Embodiment
As Fig. 1, Fig. 2: super-huge hydrogovernor main control valve integrated form mechanical-hydraulic control gear of the present utility model comprises main control valve and mechanical-hydraulic control gear, and the mechanical-hydraulic control gear comprises electric liquid conversion portion, manual control part, control section, emergency shutdown control section automatically.
Electricity liquid conversion portion adopts the electric liquid conversion equipment of two Proportional valve redundancies, and the first electro-hydraulic servo Proportional valve 1 and the second electro-hydraulic servo Proportional valve 2 are by 3 its sortings of control of Proportional valve function separating valve; Manually control is with control is by manual function separating valve 4 its sortings of control automatically, and hand-operated direction valve 5 is denied to realize hand/conversion automatically by hand/automatic function separating valve 4 its gatings of control; The figure meta is changed to automatic operating conditions, and hand-operated direction valve 5 is not worked at meta, is auto state, when hand/automatic function separating valve 4 its gatings of control, and hand-operated direction valve 5 work; Proportional valve function separating valve 3 is connected with manual function separating valve 4, is connected with control chamber B with the control chamber A of main control valve 7 by emergency shutdown valve 6 behind its gating; The valve gap 7j of main control valve 7 is integrated valve gap, has runner to be communicated with the integrated form mechanical-hydraulic control gear of valve gap 7j top left end in integrated valve gap, integrated form mechanical-hydraulic control gear is integrated above-mentioned all valves except that main control valve 7.
Main control valve pressure hydraulic fluid port P is connected with duplex oil purifier 8, and the output of duplex oil purifier 8 is connected with the mechanical-hydraulic control gear.
As Fig. 3～Fig. 6, integrated form mechanical-hydraulic control gear is integrated above-mentioned all valves except that main control valve 7.Comprise: the first electro-hydraulic servo Proportional valve 1, the second electro-hydraulic servo Proportional valve 2 and Proportional valve function separating valve 3 are installed on the Proportional valve integrated package 10, interconnect by inner flow passage; Manually on the integrated package 11 hand-operated direction valve 5 is installed, manual function separating valve 4 is installed on hand/automatic integrated package 12, and emergency shutdown solenoid valve 6 is installed on the emergency shutdown integrated package 13; Proportional valve integrated package 10, manual integrated package 11, hand/automatic integrated package 12, emergency shutdown integrated package 13 connect successively, and realize the due each other annexation of each valve by the runner in each integrated package; Last integrated form mechanical-hydraulic control gear is installed on the connecting plate 14, and pressure hydraulic fluid port P, oil return inlet T, control chamber A, the control chamber B of integrated form mechanical-hydraulic control gear arranged on the connecting plate 14; Connecting plate 14 is connected with the integrated valve gap 7j of main control valve, and the pressure hydraulic fluid port P on the connecting plate 14, oil return inlet T, control chamber A, control chamber B are corresponding with valve port on the integrated valve gap 7j, is connected with main control valve with runner in the valve body by the integrated valve gap of main control valve.The 16th, runner.
Claims (4)
1. super-huge hydrogovernor main control valve integrated form mechanical-hydraulic control gear, comprise main control valve and mechanical-hydraulic control gear, the mechanical-hydraulic control gear comprises electric liquid conversion portion, manual control part, automatic control section, emergency shutdown control section, it is characterized in that: electric liquid conversion portion adopts the electric liquid conversion equipment of two Proportional valve redundancies, and the first electro-hydraulic servo Proportional valve (1) and the second electro-hydraulic servo Proportional valve (2) are controlled its sorting by Proportional valve function separating valve (3); Hand-operated direction valve (5) is controlled its gating not by hand/automatic function separating valve (4), realizes hand/conversion automatically; Proportional valve function separating valve (3) is connected with manual function separating valve (4), is connected with control chamber B with the control chamber A of main control valve (7) by emergency shutdown valve (6) behind its gating; The valve gap (7 of main control valve (7)
j) be integrated valve gap, runner and valve gap (7 are arranged in integrated valve gap
j) the integrated form mechanical-hydraulic control gear of top left end is communicated with, integrated form mechanical-hydraulic control gear is integrated above-mentioned all valves except that main control valve (7).
2. super-huge hydrogovernor main control valve integrated form mechanical-hydraulic control gear according to claim 1, it is characterized in that: main control valve pressure hydraulic fluid port P is connected with duplex oil purifier (8), and the output of duplex oil purifier (8) is connected with the mechanical-hydraulic control gear.
3. super-huge hydrogovernor main control valve integrated form mechanical-hydraulic control gear according to claim 1 and 2, it is characterized in that: integrated form mechanical-hydraulic control gear comprises: the first electro-hydraulic servo Proportional valve (1), the second electro-hydraulic servo Proportional valve (2) and Proportional valve function separating valve (3) are installed on the Proportional valve integrated package (10), interconnect by inner flow passage; Manually integrated package (11) is gone up hand-operated direction valve (5) is installed, and manual function separating valve (4) is installed on hand/automatic integrated package (12), and emergency shutdown solenoid valve (6) is installed on the emergency shutdown integrated package (13); Proportional valve integrated package (10), manual integrated package (11), hand/automatic integrated package (12), emergency shutdown integrated package (13) connect successively, and realize the due each other annexation of each valve by the runner in each integrated package; Last integrated form mechanical-hydraulic control gear is installed on the connecting plate (14), and pressure hydraulic fluid port P, oil return inlet T, control chamber A, the control chamber B of integrated form mechanical-hydraulic control gear arranged on the connecting plate (14); Connecting plate (14) is connected with the integrated valve gap of main control valve (7j), pressure hydraulic fluid port P on the connecting plate (14), oil return inlet T, control chamber A, control chamber B are corresponding with valve port on the integrated valve gap (7j), are connected with main control valve with runner in the valve body by the integrated valve gap of main control valve.
4. super-huge hydrogovernor main control valve integrated form mechanical-hydraulic control gear according to claim 1 and 2, it is characterized in that: on the right of the integrated valve gap of main control valve (7j) duplex oil purifier (8) is housed, duplex oil purifier (8) is connected with the P mouth of main control valve (7) with runner (16) on the valve body (7a) by integrated valve gap (7j).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202286811U CN201539353U (en) | 2009-09-29 | 2009-09-29 | Integrated mechanical hydraulic control device for main distributing pressure valve of super-huge type hydrogovernor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202286811U CN201539353U (en) | 2009-09-29 | 2009-09-29 | Integrated mechanical hydraulic control device for main distributing pressure valve of super-huge type hydrogovernor |
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| CN201539353U true CN201539353U (en) | 2010-08-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202286811U Expired - Lifetime CN201539353U (en) | 2009-09-29 | 2009-09-29 | Integrated mechanical hydraulic control device for main distributing pressure valve of super-huge type hydrogovernor |
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| CN (1) | CN201539353U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102364088A (en) * | 2011-11-03 | 2012-02-29 | 武汉三联水电控制设备有限公司 | Double-feedback positioning high-flow hydraulic control valve and control system of turbine governor |
| CN102434372A (en) * | 2011-11-29 | 2012-05-02 | 国网电力科学研究院 | Small-scale speed regulator comprehensive adjusting device based on hydraulic pressure integration technology |
| CN112031940A (en) * | 2020-07-27 | 2020-12-04 | 江西理工大学 | Integrated control speed regulator |
| CN113531197A (en) * | 2021-07-13 | 2021-10-22 | 武汉三联水电控制设备有限公司 | Mechanical stop and hydraulic closing double-feedback positioning multifunctional large-flow control valve |
-
2009
- 2009-09-29 CN CN2009202286811U patent/CN201539353U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102364088A (en) * | 2011-11-03 | 2012-02-29 | 武汉三联水电控制设备有限公司 | Double-feedback positioning high-flow hydraulic control valve and control system of turbine governor |
| CN102364088B (en) * | 2011-11-03 | 2013-07-24 | 武汉三联水电控制设备有限公司 | Double-feedback positioning high-flow hydraulic control valve and control system of turbine governor |
| CN102434372A (en) * | 2011-11-29 | 2012-05-02 | 国网电力科学研究院 | Small-scale speed regulator comprehensive adjusting device based on hydraulic pressure integration technology |
| WO2013078878A1 (en) * | 2011-11-29 | 2013-06-06 | 国网电力科学研究院 | Comprehensive regulation device for small speed-regulator based on integrated hydraulic pressure technology |
| CN102434372B (en) * | 2011-11-29 | 2014-05-07 | 国网电力科学研究院 | Small-scale speed regulator comprehensive adjusting device based on hydraulic pressure integration technology |
| CN112031940A (en) * | 2020-07-27 | 2020-12-04 | 江西理工大学 | Integrated control speed regulator |
| CN112031940B (en) * | 2020-07-27 | 2022-07-15 | 江西理工大学 | Integrated control speed regulator |
| CN113531197A (en) * | 2021-07-13 | 2021-10-22 | 武汉三联水电控制设备有限公司 | Mechanical stop and hydraulic closing double-feedback positioning multifunctional large-flow control valve |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100804 |
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| CX01 | Expiry of patent term |