CN210660801U - Modular hydraulic control system for speed regulator of small water turbine - Google Patents
Modular hydraulic control system for speed regulator of small water turbine Download PDFInfo
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- CN210660801U CN210660801U CN201921514579.8U CN201921514579U CN210660801U CN 210660801 U CN210660801 U CN 210660801U CN 201921514579 U CN201921514579 U CN 201921514579U CN 210660801 U CN210660801 U CN 210660801U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 4
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 claims 1
- 238000012423 maintenance Methods 0.000 abstract description 4
- 230000003014 reinforcing effect Effects 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 83
- 230000009471 action Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000010729 system oil Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
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- 239000007788 liquid Substances 0.000 description 1
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Abstract
A modularized hydraulic control system of a small-sized water turbine speed regulator comprises a shuttle valve, an emergency shutdown electromagnetic valve, a switching electromagnetic valve, a proportional valve, a manual valve and a hydraulic control reversing valve; the oil outlet ports A and B of the emergency shutdown electromagnetic valve are respectively communicated with the oil inlet port P of the switching electromagnetic valve and the oil inlet port C of the shuttle valve; an oil outlet port A and an oil outlet port B of the switching electromagnetic valve are respectively communicated with an oil inlet port of the proportional valve and an oil inlet port of the manual valve; one oil outlet of the manual valve and one oil outlet of the proportional valve are both connected with an oil inlet port D of the shuttle valve; the other oil outlet of the manual valve and the other oil outlet of the proportional valve are both connected with one oil inlet of the hydraulic control reversing valve; an oil outlet port E of the shuttle valve is communicated with the other oil inlet port of the hydraulic control reversing valve; two oil outlet ports of the hydraulic control reversing valve are respectively connected with two oil inlet ports of the hydraulic cylinder; the utility model discloses in, realize reducing the maintenance cost, reduce the equipment volume, reinforcing control accuracy improves assembly efficiency.
Description
Technical Field
The utility model relates to a hydraulic control technical field especially relates to a small-size hydraulic turbine speed regulator modularization hydraulic control system.
Background
Although the hydraulic part of the small speed regulator is continuously updated in the industry at present, the control is realized by utilizing the traditional hydraulic component.
With the continuous development of hydraulic technology, the existing small-sized speed regulator equipment adopts 16Mp working pressure, the pressure can not meet the system requirements by using traditional hydraulic elements, a simple oil way can realize functions only by combining a plurality of hydraulic valve groups, on one hand, the hardware cost of the equipment is increased, and on the other hand, the whole equipment has large volume and complex structure. The existing unattended operation mode and the operation mode of few people on duty bring great inconvenience to equipment maintenance.
SUMMERY OF THE UTILITY MODEL
Objects of the invention
For solving the technical problem who exists among the background art, the utility model provides a small-size hydraulic turbine speed regulator modularization hydraulic control system realizes utilizing the modularization mode to replace traditional hydraulic pressure valves with high accuracy, small shuttle valve.
The utility model provides a modular hydraulic control system of a small-sized hydraulic turbine speed regulator, which comprises a shuttle valve, an emergency shutdown electromagnetic valve, a switching electromagnetic valve, a proportional valve, a manual valve and a hydraulic control reversing valve; an oil inlet port P of the emergency shutdown electromagnetic valve is communicated with an oil inlet pipe; an oil outlet port A of the emergency shutdown electromagnetic valve is communicated with an oil inlet port P of the switching electromagnetic valve; the outlet port B of the emergency shutdown electromagnetic valve is communicated with the oil inlet port C of the shuttle valve; the oil outlet port A end of the switching electromagnetic valve is communicated with the oil inlet port of the proportional valve; an oil outlet port B of the switching electromagnetic valve is communicated with an oil inlet port of the manual valve; two oil outlet ports of the proportional valve are respectively communicated with two oil inlet ports of the first double-hydraulic control one-way valve; two oil outlet ports of the manual valve are communicated with two oil inlet ends of the second double hydraulic control one-way valve; one oil outlet port of the first double hydraulic control one-way valve and one oil outlet port of the second double hydraulic control one-way valve are both connected with the oil inlet port D of the shuttle valve; the other oil outlet port of the first double hydraulic control one-way valve and the other oil outlet port of the second double hydraulic control one-way valve are both connected with one oil inlet port of the hydraulic control reversing valve; an oil outlet port E of the shuttle valve is communicated with the other oil inlet port of the hydraulic control reversing valve; the oil outlet port B of the hydraulic control reversing valve and the oil outlet port A of the hydraulic control reversing valve are respectively connected with two oil inlet ports of a third double hydraulic control one-way valve; two oil outlet ports of the third double-hydraulic control one-way valve are respectively connected with two oil inlet ports of the hydraulic cylinder.
The above technical scheme of the utility model has following profitable technological effect: the reversing valve pushes the single-ball shuttle valve to communicate the high-pressure ports in the two working control chambers to the signal chamber and the common chamber. Meanwhile, a one-way valve is formed on the side with low pressure to block an oil way to realize a system safety position. The ball body in the shuttle valve has a small fit clearance with the inner wall, so that the ball body can freely slide in the inner cavity while the internal oil drainage is ensured, and the ball body is flexible and has small frictional resistance. The shuttle valve is made into a modular structure, the assembly of the device can be completed by directly splicing, the system has simple structure and convenient maintenance, and particularly has obvious advantages in the device with higher system oil pressure.
Drawings
Fig. 1 is the structural schematic diagram of the modular control system of the small-sized hydraulic turbine governor provided by the utility model.
Fig. 2 is a hydraulic system diagram of the modular control system of the small-sized hydraulic turbine governor according to the present invention.
Reference numerals: 1-a shuttle valve; 2-emergency shutdown electromagnetic valve; 3-switching the electromagnetic valve; 4-a proportional valve; 5-manual valve; 6-hydraulic control reversing valve; 7-a hydraulic cylinder; 8-a first double hydraulic control check valve; 9-a second double hydraulic control one-way valve; 10-third double pilot operated check valve.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the description is intended to be illustrative only and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
As shown in fig. 1-2, the utility model provides a small-size hydro-turbine governor modularization hydraulic control system, including shuttle valve 1, emergency shutdown solenoid valve 2, switching solenoid valve 3, proportional valve 4, manual valve 5 and liquid accuse switching-over valve 6; an oil inlet port P of the emergency shutdown electromagnetic valve 2 is communicated with an oil inlet pipe; an oil outlet port A of the emergency shutdown electromagnetic valve 2 is communicated with an oil inlet port P of the switching electromagnetic valve 3; the outlet port B of the emergency shutdown electromagnetic valve 2 is communicated with the oil inlet port C of the shuttle valve 1; the end A of the oil outlet port of the switching electromagnetic valve 3 is communicated with the oil inlet port of the proportional valve 4; an oil outlet port B of the switching electromagnetic valve 3 is communicated with an oil inlet port of the manual valve 5; two oil outlet ports of the proportional valve 4 are respectively communicated with two oil inlet ports of the first double hydraulic control one-way valve 8; two oil outlet ports of the manual valve 5 are communicated with two oil inlet ends of a second double hydraulic control one-way valve 9; an oil outlet port of the first double hydraulic control one-way valve 8 and an oil outlet port of the second double hydraulic control one-way valve 9 are both connected with an oil inlet port D of the shuttle valve 1; the other oil outlet port of the first double hydraulic control one-way valve 8 and the other oil outlet port of the second double hydraulic control one-way valve 9 are both connected with one oil inlet port of the hydraulic control reversing valve 6; an oil outlet port E of the shuttle valve 1 is communicated with the other oil inlet port of the hydraulic control reversing valve 6; the oil outlet port B and the oil outlet port A of the hydraulic control reversing valve 6 are respectively connected with two oil inlet ports of the third double hydraulic control one-way valve 10; two oil outlet ports of the third double hydraulic control one-way valve 10 are respectively connected with two oil inlet ports of the hydraulic cylinder 7.
The utility model discloses in, emergency shutdown solenoid valve 2 is in parallel position pressure oil feed port P and the switch-on of port A that produces oil during the normal control of system, and oil feed port T and the switch-on of port B that produces oil. The system pressure oil connects the pressure oil to the switching solenoid valve 3 through the emergency stop solenoid valve 2 and selects whether the system is controlled by the proportional valve 4 or the manual valve 5 is operated by the switching valve. When the proportional valve 4 shown in fig. 2 works, the proportional valve sends pressure oil to the oil inlet port D of the shuttle valve 1 under the action of the electric signal control device, pushes the shuttle valve ball to move towards the oil inlet port C, simultaneously opens the oil outlet port E of the shuttle valve to enable one end of the hydraulic control reversing valve 6 to be pressurized, pushes the valve core oil inlet port P of the hydraulic control reversing valve 6 to be connected with the oil outlet port B, and the oil inlet port T is communicated with the oil outlet port a to directly push the hydraulic cylinder 7 shown in fig. 2 to move. When the hydraulic cylinder 7 needs to be quickly closed in an emergency situation, the valve core of the emergency stop electromagnetic valve 2 is changed into a cross position by the action coil of the emergency stop electromagnetic valve 2 under the control of the electric device, the oil inlet port P is communicated with the oil outlet port B, the oil inlet port T is communicated with the oil outlet port A, pressure oil is sent to the oil inlet port C of the shuttle valve 1, the shuttle valve ball is pushed to move towards the oil inlet port D, the oil outlet port E of the shuttle valve is opened at the same time, one end of the hydraulic control reversing valve 6 is pushed to push the valve core oil inlet port P of the hydraulic control reversing valve 6 to be communicated with the oil outlet port B, and the oil inlet port T is communicated with the oil outlet port A to directly.
The utility model discloses in, the switching-over valve promotes the high port UNICOM of pressure to signal chamber and common chamber in single pearl shuttle valve with two work control chambeies. Meanwhile, a one-way valve is formed on the side with low pressure to block an oil way to realize a system safety position. The ball body in the shuttle valve has a small fit clearance with the inner wall, so that the ball body can freely slide in the inner cavity while the internal oil drainage is ensured, and the ball body is flexible and has small frictional resistance. The shuttle valve is made into a modular structure, the assembly of the device can be completed by directly splicing, the system has simple structure and convenient maintenance, and particularly has obvious advantages in the device with higher system oil pressure.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.
Claims (2)
1. A modularized hydraulic control system of a small-sized water turbine speed regulator is characterized by comprising a shuttle valve (1), an emergency stop electromagnetic valve (2), a switching electromagnetic valve (3), a proportional valve (4), a manual valve (5) and a hydraulic control reversing valve (6); an oil inlet port P of the emergency shutdown electromagnetic valve (2) is communicated with an oil inlet pipe; an oil outlet port A of the emergency shutdown electromagnetic valve (2) is communicated with an oil inlet port P of the switching electromagnetic valve (3); an outlet port B of the emergency shutdown electromagnetic valve (2) is communicated with an oil inlet port C of the shuttle valve (1); the end A of the oil outlet port of the switching electromagnetic valve (3) is communicated with the oil inlet port of the proportional valve (4); an oil outlet port B of the switching electromagnetic valve (3) is communicated with an oil inlet port of the manual valve (5); two oil outlet ports of the proportional valve (4) are respectively communicated with two oil inlet ports of the first double hydraulic control one-way valve (8); two oil outlet ports of the manual valve (5) are communicated with two oil inlet ends of a second double hydraulic control one-way valve (9); an oil outlet port of the first double hydraulic control one-way valve (8) and an oil outlet port of the second double hydraulic control one-way valve (9) are connected with an oil inlet port D of the shuttle valve (1); the other oil outlet port of the first double hydraulic control one-way valve (8) and the other oil outlet port of the second double hydraulic control one-way valve (9) are both connected with one oil inlet port of the hydraulic control reversing valve (6); an oil outlet port E of the shuttle valve (1) is communicated with the other oil inlet port of the hydraulic control reversing valve (6);
an oil outlet port B and an oil outlet port A of the hydraulic control reversing valve (6) are respectively connected with two oil inlet ports of the third double hydraulic control one-way valve (10); two oil outlet ports of the third double hydraulic control one-way valve (10) are respectively connected with two oil inlet ports of the hydraulic cylinder (7).
2. The modular hydraulic control system of small hydro governor according to claim 1, characterized in that the oil inlet port P of the pilot operated directional control valve (6) communicates with the oil inlet pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921514579.8U CN210660801U (en) | 2019-09-12 | 2019-09-12 | Modular hydraulic control system for speed regulator of small water turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921514579.8U CN210660801U (en) | 2019-09-12 | 2019-09-12 | Modular hydraulic control system for speed regulator of small water turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210660801U true CN210660801U (en) | 2020-06-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921514579.8U Active CN210660801U (en) | 2019-09-12 | 2019-09-12 | Modular hydraulic control system for speed regulator of small water turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210660801U (en) |
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2019
- 2019-09-12 CN CN201921514579.8U patent/CN210660801U/en active Active
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