CN2851678Y - Standardized high pressure resistant accident distributing valve - Google Patents
Standardized high pressure resistant accident distributing valve Download PDFInfo
- Publication number
- CN2851678Y CN2851678Y CNU2005200981297U CN200520098129U CN2851678Y CN 2851678 Y CN2851678 Y CN 2851678Y CN U2005200981297 U CNU2005200981297 U CN U2005200981297U CN 200520098129 U CN200520098129 U CN 200520098129U CN 2851678 Y CN2851678 Y CN 2851678Y
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- CN
- China
- Prior art keywords
- hydraulic
- valve
- high pressure
- distributing valve
- pressure resistant
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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
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Abstract
The utility model discloses a standardized high pressure resistant emergency pressure distribution valve, which comprises a hydraulic direction change valve, wherein the hydraulic direction change valve is communicated with at least a hydraulic operation control unit composed of two hydraulic direction change valves, which are equivalent to a two-position six-way hydraulic operation control unit. Compared with the existing emergency pressure distribution valve, the utility model has the remarkable advantages that the peculiar function of the emergency pressure distribution valve is realized via functional combination of standard hydraulic elements adopted, the standardization degree is high, the interchangeability is strong, the pressure oil resistant grade is high, the cost is low but the service life is long, the installation is convenient, the reliability is high; thus the utility model can be widely used in the field of hydraulic power generation, etc., and can effectively enhance the safety of an electric generator set and save equipment investment.
Description
Technical field
The utility model belongs to hydraulic control device, is specifically related to a kind of overspeed protection system emergency distributing valve that is used for water power plant hydraulic generator unit.
Background technique
Existing emergency distributing valve is made of selector valve and a kind of 26 logical selector valves, is used for the overspeed protection system of water power plant hydraulic generator unit.When generating unit speed too high; speed regulator cuts out water distributor and operates when malfunctioning; emergency distributing valve is accepted the overspeed protection signalizing activity; its spool commutates and speed regulator is excised; the servomotor of the pressure oil direct control water distributor in the oil system, the emergency cut-off water distributor prevents that unit from overrunning; for the normal operation of hydraulic generator unit provides safe and reliable protection, as shown in Figure 5.
26 logical selector valves in the existing emergency distributing valve mostly are has foundry goods valve body edge copper bush structure, its complex structure, and processing technology requires high, and standardization level is low; After using a period of time, its liner wear is serious, and the oily phenomenon of string takes place to leak the emergency distributing valve body, causes electric energy to expend and equipment attrition, can not provide safe and reliable protection for the normal operation of hydraulic generator unit.In conventional Medium and Small Hydraulic Generator group, the emergency distributing valve operating device generally is not set, but ball valve or butterfly valve one protective measure after as the speed regulator emergency shutdown is being set on the conduit pipe.But ball valve or butterfly valve need independently auxiliary control appliances such as oil gear, ball (butterfly) valve control cabinet, ball (butterfly) valve operation servomotor, and its equipment investment height, installation and maintenance are loaded down with trivial details.
Summary of the invention
The purpose of this utility model is to provide a kind of standardized high pressure resistant emergency distributing valve, to overcome above-mentioned defective.
The technical solution of the utility model is: the high pressure resistant emergency distributing valve of standardization, and it comprises hydraulicdirectional control valve, hydraulicdirectional control valve UNICOM has two six logical hydraulic operation control units by two hydraulicdirectional control valves being equivalent to of constituting at least.
Compare with existing emergency distributing valve, the remarkable advantage of the utility model patent is: adopt the standard hydraulic element to realize the peculiar function of emergency distributing valve, standardization level height by the function combination, interchangeability is strong, and oil resistant is pressed the grade height, the low but long service life of cost, convenient for installation and maintenance, the reliability height.The utility model cooperates the installation maintenance can replace ball (butterfly) valve-operating system fully with hand sluice valve, can effectively protect generator safety equally.This product can be extensive use of in other fields such as hydroelectric powers, can effectively improve the Security of generator set and save equipment investment.
Description of drawings
Principle schematic before Fig. 1 the utility model accident
Principle schematic after Fig. 2 the utility model accident
The integrated master of Fig. 3 the utility model looks schematic representation
Schematic representation is looked on the integrated left side of Fig. 4 the utility model
Fig. 5 has the emergency distributing valve principle schematic now
Embodiment
Hydraulic operation control unit of the present utility model can have various ways, as being made of two two position four-way valves; Constitute by six two Twoway valvess; Constitute etc. by four two-position three-way valves.Can constitute with the form of hydraulic system; Also can be with integrated hydraulic component form.
Present embodiment hydraulic operation control unit adopts two two position four-way hydraulic selector valves to constitute, as shown in Figure 1, the oil inlet end UNICOM of the oil inlet end P of two-bit triplet electromagnetic hydraulic pressure selector valve 1 and hydraulic control two position and four-way reversing valves 2, two outer two ends of two-bit triplet electromagnetic hydraulic pressure selector valve 1 respectively with the hydraulic control end of hydraulic control two position and four-way reversing valves 2 and hydraulic control two position and four-way reversing valves 3 together with.Hydraulic control two position and four-way reversing valves 2 can with servomotor shutdown mouthful, a speed regulator shutdown mouthful UNICOM; Hydraulic control two position and four-way reversing valves 3 can with servomotor start mouthful, a speed regulator start mouthful UNICOM.
Said system can be integrated.Shown in Fig. 3,4, establish oil-feed connecting end 5 on the hydraulic manifold block 4, oil return connecting end 6, servomotor shutdown mouthful connecting end 7, speed regulator shutdown mouthful connecting end 8, servomotor start mouthful connecting end 9, speed regulator start mouthful connecting end 10.Two-bit triplet electromagnetic hydraulic pressure selector valve 1, hydraulic control two position and four-way reversing valves 2, hydraulic control two position and four-way reversing valves 3 are fixed on hydraulic manifold block 4.Establish oil duct according to Fig. 1 principle in the hydraulic manifold block 4.Establish the accident off time on hydraulic control two position and four-way reversing valves 2 and hydraulic control two position and four-way reversing valves 3 and adjust screw rod 11.
When electromagnet E2 get electric after, two-bit triplet electromagnetic hydraulic pressure selector valve 1 is in the work of right position, pilot pressure oil P ends, hydraulic control two position and four-way reversing valves 2 right control chambers lead to oil return T.3 spring-loadeds of hydraulic control two position and four-way reversing valves are also in the work of right position, and speed regulator open and close machine mouth leads directly to servomotor open and close machine mouth respectively; Be that speed regulator is directly controlled the servomotor switch, as shown in Figure 1.When generating unit speed too high; speed regulator cuts out water distributor and operates when malfunctioning, and emergency distributing valve is accepted the overspeed protection signal, and electromagnet E1 gets; two-bit triplet electromagnetic hydraulic pressure selector valve 1 is in the work of position, a left side, and pilot pressure oil P leads to hydraulic control two position and four-way reversing valves 2 left control chambers.Hydraulic control two position and four-way reversing valves 3 are subjected to action of hydraulic force also in the work of left position, and speed regulator open and close machine mouth ends, the straight-through servomotor shutdown of pressure oil mouth, a servomotor start mouthful straight-through oil return; Be that speed regulator is excised by short circuit, the direct accident shutdown of servomotor.As shown in Figure 2.Solenoid directional control valve band positioning work piece, its electromagnet need not long-term energising; Hydraulicchange-over valve tape travel regulator can conveniently be adjusted the servomotor accident off time.
Claims (6)
1, the high pressure resistant emergency distributing valve of a kind of standardization, it comprises hydraulicdirectional control valve, it is characterized in that hydraulicdirectional control valve UNICOM has two six logical hydraulic operation control units by two hydraulicdirectional control valves being equivalent to of constituting at least.
2, the high pressure resistant emergency distributing valve of standardization according to claim 1 is characterized in that described hydraulic operation control unit is made of two two position four-way valves.
3, the high pressure resistant emergency distributing valve of standardization according to claim 1 is characterized in that described hydraulic operation control unit is made of six two Twoway valvess.
4, the high pressure resistant emergency distributing valve of standardization according to claim 1 is characterized in that described hydraulic operation control unit is made of four two-position three-way valves.
5, as the high pressure resistant emergency distributing valve of standardization as described in any in the claim 1～4, it is characterized in that described hydraulicdirectional control valve and hydraulic operation control unit are installed on the hydraulic manifold block.
6,, it is characterized in that establishing on the selector valve in the described hydraulic operation control unit accident off time to adjust screw rod as the high pressure resistant emergency distributing valve of standardization as described in any in the claim 1～4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005200981297U CN2851678Y (en) | 2005-09-22 | 2005-09-22 | Standardized high pressure resistant accident distributing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005200981297U CN2851678Y (en) | 2005-09-22 | 2005-09-22 | Standardized high pressure resistant accident distributing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2851678Y true CN2851678Y (en) | 2006-12-27 |
Family
ID=37585635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2005200981297U Expired - Fee Related CN2851678Y (en) | 2005-09-22 | 2005-09-22 | Standardized high pressure resistant accident distributing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2851678Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
2005
- 2005-09-22 CN CNU2005200981297U patent/CN2851678Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |