CN203978966U - A kind of speed regulator system of novel high oil pressure band pressure regulator valve - Google Patents
A kind of speed regulator system of novel high oil pressure band pressure regulator valve Download PDFInfo
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- CN203978966U CN203978966U CN201420380090.7U CN201420380090U CN203978966U CN 203978966 U CN203978966 U CN 203978966U CN 201420380090 U CN201420380090 U CN 201420380090U CN 203978966 U CN203978966 U CN 203978966U
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Abstract
The utility model relates to a kind of speed regulator system of novel high oil pressure band pressure regulator valve.This speed regulator system comprise electromagnetic proportional valve, stacking type hydraulic control check valve, start solenoid valve, the first hydraulicchange-over valve, shutdown solenoid valve, tightly have a power failure magnet valve, one-way valve, the second hydraulicchange-over valve, throttle valve, the 3rd hydraulicchange-over valve, the first stop valve, the second stop valve, one-way throttle valve, close throttle valve, quick closing valve throttle valve and fast throttle opening slowly, by cooperatively interacting of each valve piece, realize the speed regulator with pressure regulator valve under high oil pressure and normally work.The utility model can be realized the function of high oil pressure band pressure regulator valve, and native system all adopts the standard piece such as valve and valve piece, so can effectively reduce leakage of oil, and processing is simple, assembling is easy, in the situation that ensureing conventional high oil pressure stator switch, while ensureing that stator is closed, pressure regulator valve is opened, and the function that pressure regulator valve resets in the time that closing motion disappears has ensured the safety of Diversion system of hydropower station.
Description
Technical field
The utility model relates to a kind of speed regulator system of novel high oil pressure band pressure regulator valve.
Background technique
Working head is higher and do not arrange in surge-chamber situation, and water power plant is in operation and may runs into due to various accidents, causes unit suddenly and system sectionalizing, and the situation of removal of load occurs.In the time of removal of load, because stator is closed rapidly, the flow of water turbine sharply changes, in water turbine pressure diversion system, can produce water attack, the maximum surge pressure now producing rises strong especially to the intensity effect of pressure diversion system, serious meeting destroys diversion system, accidents caused, therefore must select other modes to limit surge pressure and raise.Conventionally the method that restriction surge pressure raises mainly contains surge-chamber, installing pressure regulator valve is set, changes distributor closing law (adopting stator the second section closing) etc.And for high-head power station, many employings arrange surge-chamber and regulate surge pressure, but it is large, long in time limit that surge-chamber is built investment, especially easily be subject to the condition restriction such as geology, landform, therefore inconvenient to building surge-chamber, and the middle-size and small-size power station of stator shut-in time Tw≤12s can be considered to replace surge-chamber with pressure regulator valve.
Be illustrated in figure 1 the main control valve of conventional belt pressure regulator valve, when low oil pressure because pressure is lower, so the main control valve piston (17) of drawing pressure regulator valve two cavity oil place is less with the leakage that lining (18) is located, but while adopting high pressurized oil system, because pressure reaches 16MPa, so to piston (17) with lining (18) processing request is very high and quality of fit requires also very highly, and can cause thus larger leakage.
Model utility content
For problems of the prior art, the purpose of this utility model is the technological scheme of the speed regulator system that a kind of novel high oil pressure band pressure regulator valve is provided.
The speed regulator system of described a kind of novel high oil pressure band pressure regulator valve, this speed regulator system is equipped with at the small hydropower station that adopts long pressure piping diversion and auxiliary tone pressure valve, it is characterized in that: the pressure oil-source of speed regulator system and the first hydraulicchange-over valve, shutdown solenoid valve, tight power failure magnet valve and the 3rd hydraulicchange-over valve are connected, shutdown solenoid valve is connected with tight power failure magnet valve, tight power failure magnet valve and start solenoid valve, electromagnetic proportional valve, the first hydraulicchange-over valve, the second hydraulicchange-over valve is connected with the 3rd hydraulicchange-over valve, start solenoid valve is connected with the first hydraulicchange-over valve, electromagnetic proportional valve is connected with stacking type hydraulic control check valve, after stacking type hydraulic control check valve is connected with the first hydraulicchange-over valve and slow pass throttle valve, quick closing valve throttle valve and fast throttle opening are connected, the slow throttle valve that closes is connected with throttle valve with the second hydraulicchange-over valve through one-way valve, the 3rd hydraulicchange-over valve and the first stop valve, the second stop valve, one-way throttle valve is connected with the second hydraulicchange-over valve, fast throttle opening is connected to stator and cuts out chamber, quick closing valve throttle valve is connected to stator and opens chamber, the first stop valve is connected to pressure regulator valve and closes chamber, one-way throttle valve is connected to pressure regulator valve and opens chamber.
The speed regulator system of described a kind of novel high oil pressure band pressure regulator valve, is characterized in that the described pressure regulator valve shut-in time is by one-way throttle valve regulation.
The utility model can be realized the function of high oil pressure band pressure regulator valve, and native system all adopts the standard piece such as valve and valve piece, so can effectively reduce leakage of oil, and processing is simple, assembling is easy, in the situation that ensureing conventional high oil pressure stator switch, while ensureing that stator is closed, pressure regulator valve is opened, and the function that pressure regulator valve resets in the time that closing motion disappears has ensured the safety of Diversion system of hydropower station.
Brief description of the drawings
Fig. 1 is the main control valve schematic diagram of conventional high oil pressure band pressure regulator valve;
Fig. 2 is the schematic diagram of the utility model steady operational status;
Fig. 3 is the schematic diagram of the utility model stator closed condition;
In figure: 1-electromagnetic proportional valve, 2-stacking type hydraulic control check valve, the 3-solenoid valve of starting shooting, 4-the first hydraulicchange-over valve, the 5-solenoid valve that shuts down, the 6-magnet valve that tightly has a power failure, 7-one-way valve, 8-the second hydraulicchange-over valve, 9-throttle valve, 10-the 3rd hydraulicchange-over valve, 11-the first stop valve, 12-the second stop valve, 13-one-way throttle valve, 14-closes throttle valve slowly, 15-quick closing valve throttle valve, the fast throttle opening of 16-, 17-piston, 18-lining.
Embodiment
Below in conjunction with Figure of description, the utility model is described further:
A kind of speed regulator system of novel high oil pressure band pressure regulator valve, this speed regulator system is equipped with at the small hydropower station that adopts long pressure piping diversion and auxiliary tone pressure valve, the pressure oil-source of speed regulator system and the first hydraulicchange-over valve 4, shutdown solenoid valve 5, tight power failure magnet valve 6 and the 3rd hydraulicchange-over valve 10 are connected, shutdown solenoid valve 5 is connected with tight power failure magnet valve 6, tight power failure magnet valve 6 and start solenoid valve 3, electromagnetic proportional valve 1, the first hydraulicchange-over valve 4, the second hydraulicchange-over valve 8 is connected with the 3rd hydraulicchange-over valve 10, start solenoid valve 3 is connected with the first hydraulicchange-over valve 4, electromagnetic proportional valve 1 is connected with stacking type hydraulic control check valve 2, after stacking type hydraulic control check valve 2 is connected with the first hydraulicchange-over valve 4 and slow pass throttle valve 14, quick closing valve throttle valve 15 and fast throttle opening 16 are connected, the slow throttle valve 14 that closes is connected with throttle valve 9 with the second hydraulicchange-over valve 8 through one-way valve 7, the 3rd hydraulicchange-over valve 10 and the first stop valve 11, the second stop valve 12, one-way throttle valve 13 is connected with the second hydraulicchange-over valve 8, fast throttle opening 16 is connected to stator and cuts out chamber, quick closing valve throttle valve 15 is connected to stator and opens chamber, the first stop valve 11 is connected to pressure regulator valve and closes chamber, one-way throttle valve 13 is connected to pressure regulator valve and opens chamber.
The utility model pressure regulator valve shut-in time is regulated by one-way throttle valve 13, and the guide vane servomotor first paragraph shut-in time in water power plant can be regulated by throttle valve 9, goes for the water power plant with pressure regulator valve, and can adopt high hydraulic operation.
When the utility model stable operation, all hydraulic valve direction as shown in Figure 2, the P chamber of the oil of pressure oil-source and the first hydraulicchange-over valve 4, the P chamber of shutdown solenoid valve 5, tightly the have a power failure P chamber of magnet valve 6, the P chamber of the 3rd hydraulicchange-over valve 10 is connected, the A chamber of tight power failure magnet valve 6 is connected with the P chamber of start solenoid valve 2, the P chamber of electromagnetic proportional valve 1, so electromagnetic proportional valve 1, start solenoid valve 2, shutdown solenoid valve 5 all do not have pressure oil to export; Because the X chamber of the first hydraulicchange-over valve 4 is connected with the B chamber of start solenoid valve 3, the Y chamber of the first hydraulicchange-over valve 4 is connected with the B chamber of tight power failure magnet valve 6, so the X chamber of the first hydraulicchange-over valve 4, Y two chambeies all do not have pressure oil effect, the first hydraulicchange-over valve 4 keep third side to, so do not have pressure oil to output to two chambeies of stator yet; The X chamber of the 3rd hydraulicchange-over valve 10 does not have pressure oil effect, closes chamber so there is pressure oil to export to pressure regulator valve from the A chamber of P chamber to the three hydraulicchange-over valves 10 of the 3rd hydraulicchange-over valve 10; The oil that pressure regulator valve is opened chamber forms a loop and drains through one-way throttle valve 13, the second stop valve 12, the 3rd hydraulicchange-over valve 10, the second hydraulicchange-over valve 8.
As Fig. 3, when solenoid valve 5 actions of shutting down in the time that stator is closed are arrived as Fig. 3 position, pressure oil is by shutdown solenoid valve 5, tight power failure magnet valve 6, act on the Y chamber of the first hydraulicchange-over valve 4, cause the spool of the first hydraulicchange-over valve 4 to be moved to the left, change the flow direction of fluid, make pressure oil through the first hydraulicchange-over valve 4, quick closing valve throttle valve 15 enters stator and cuts out chamber stator is closed, the pressure oil that meanwhile acts on the Y chamber of the first hydraulicchange-over valve 4 also can act on the X chamber of the 3rd hydraulicchange-over valve 10 simultaneously, make the 3rd hydraulicchange-over valve 10 change the flow direction of fluid, the unlatching chamber that pressure oil enters pressure regulator valve through the 3rd hydraulicchange-over valve 10 is opened pressure regulator valve, pressure regulator valve cuts out the fluid in chamber through the 3rd hydraulicchange-over valve 10 to second hydraulicchange-over valves 8, because the Y chamber of the first hydraulicchange-over valve 4 is also connected with the X chamber of the second hydraulicchange-over valve 8, so the second hydraulicchange-over valve 8 also changes direction, a fluid part enters stator through the second hydraulicchange-over valve 8 and one-way valve 7 and closes chamber, the fluid of a part is drained through throttle valve 9, entering stator closes the fluid in chamber and can change size by throttle valve 9.
In the time that shutdown solenoid valve 5 is failure to actuate, pressure oil can not arrive Y chamber, the X chamber of the 3rd hydraulicchange-over valve 10 and the X chamber of the second hydraulicchange-over valve 8 of the first hydraulicchange-over valve 4, so pressure oil enters into the chamber of closing of pressure regulator valve through the 3rd hydraulicchange-over valve 10, and the fluid in pressure regulator valve unlatching chamber entered one-way throttle valve 13 and the second hydraulicchange-over valve 8 is drained, the time that pressure regulator valve cuts out is decided by the unlatching size of one-way throttle valve 13.
In the time that tight power failure magnet valve 6 moves, pressure oil acts on the Y chamber of the first hydraulicchange-over valve 4 by tight power failure magnet valve 6, and its working principle is moved similar with shutdown solenoid valve 5.
The utility model has been realized pressure regulator valve in the time that stator is closed and has been opened, and the function that pressure regulator valve resets in the time that closing motion disappears has ensured the safety of Diversion system of hydropower station, and adopts the installation of valve piece to reduce processing request, has reduced leakage of oil amount.
Claims (2)
1. the speed regulator system of a novel high oil pressure band pressure regulator valve, this speed regulator system is equipped with at the small hydropower station that adopts long pressure piping diversion and auxiliary tone pressure valve, it is characterized in that: the pressure oil-source of speed regulator system and the first hydraulicchange-over valve (4), shutdown solenoid valve (5), tight power failure magnet valve (6) and the 3rd hydraulicchange-over valve (10) are connected, shutdown solenoid valve (5) is connected with tight power failure magnet valve (6), tight power failure magnet valve (6) and start solenoid valve (3), electromagnetic proportional valve (1), the first hydraulicchange-over valve (4), the second hydraulicchange-over valve (8) is connected with the 3rd hydraulicchange-over valve (10), start solenoid valve (3) is connected with the first hydraulicchange-over valve (4), electromagnetic proportional valve (1) is connected with stacking type hydraulic control check valve (2), stacking type hydraulic control check valve (2) is connected with the first hydraulicchange-over valve (4) afterwards and the slow throttle valve (14) that closes, quick closing valve throttle valve (15) and fast throttle opening (16) are connected, the slow throttle valve (14) that closes is connected with throttle valve (9) with the second hydraulicchange-over valve (8) through one-way valve (7), the 3rd hydraulicchange-over valve (10) and the first stop valve (11), the second stop valve (12), one-way throttle valve (13) is connected with the second hydraulicchange-over valve (8), fast throttle opening (16) is connected to stator and cuts out chamber, quick closing valve throttle valve (15) is connected to stator and opens chamber, the first stop valve (11) is connected to pressure regulator valve and closes chamber, one-way throttle valve (13) is connected to pressure regulator valve and opens chamber.
2. the speed regulator system of a kind of novel high oil pressure band pressure regulator valve according to claim 1, is characterized in that the described pressure regulator valve shut-in time is regulated by one-way throttle valve (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420380090.7U CN203978966U (en) | 2014-07-10 | 2014-07-10 | A kind of speed regulator system of novel high oil pressure band pressure regulator valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420380090.7U CN203978966U (en) | 2014-07-10 | 2014-07-10 | A kind of speed regulator system of novel high oil pressure band pressure regulator valve |
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| Publication Number | Publication Date |
|---|---|
| CN203978966U true CN203978966U (en) | 2014-12-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420380090.7U Expired - Fee Related CN203978966U (en) | 2014-07-10 | 2014-07-10 | A kind of speed regulator system of novel high oil pressure band pressure regulator valve |
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| CN (1) | CN203978966U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105201737A (en) * | 2015-10-19 | 2015-12-30 | 天津电气科学研究院有限公司 | Hydraulic auxiliary adjusting system of small-size hydropower station |
| CN110332162A (en) * | 2019-08-13 | 2019-10-15 | 深圳市恩莱吉能源科技有限公司 | It is a kind of with anaerobic water be operate medium hydraulic turbine blades adjuster |
| CN111237271A (en) * | 2020-01-07 | 2020-06-05 | 华自科技股份有限公司 | High oil pressure cartridge formula air-vent valve hydraulic control system |
-
2014
- 2014-07-10 CN CN201420380090.7U patent/CN203978966U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105201737A (en) * | 2015-10-19 | 2015-12-30 | 天津电气科学研究院有限公司 | Hydraulic auxiliary adjusting system of small-size hydropower station |
| CN110332162A (en) * | 2019-08-13 | 2019-10-15 | 深圳市恩莱吉能源科技有限公司 | It is a kind of with anaerobic water be operate medium hydraulic turbine blades adjuster |
| CN111237271A (en) * | 2020-01-07 | 2020-06-05 | 华自科技股份有限公司 | High oil pressure cartridge formula air-vent valve hydraulic control system |
| CN111237271B (en) * | 2020-01-07 | 2022-01-21 | 华自科技股份有限公司 | High oil pressure cartridge formula air-vent valve hydraulic control system |
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| 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: 20141203 Termination date: 20180710 |
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| CF01 | Termination of patent right due to non-payment of annual fee |