CN220101666U - Hydropower station water inlet gate quick closing control system based on double oil tanks - Google Patents
Hydropower station water inlet gate quick closing control system based on double oil tanks Download PDFInfo
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- CN220101666U CN220101666U CN202320962522.4U CN202320962522U CN220101666U CN 220101666 U CN220101666 U CN 220101666U CN 202320962522 U CN202320962522 U CN 202320962522U CN 220101666 U CN220101666 U CN 220101666U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 23
- 230000000153 supplemental effect Effects 0.000 abstract description 6
- 239000003921 oil Substances 0.000 description 118
- 230000001502 supplementing effect Effects 0.000 description 9
- 238000004064 recycling Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
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Abstract
The utility model discloses a hydropower station water inlet gate quick closing control system based on double oil tanks; the hydraulic control system comprises an electric control unit, a hydraulic unit, an oil cylinder valve group and a sensor module; the hydraulic unit comprises a main oil tank and a high-level oil tank; the main oil tank is communicated with the high-level oil tank through a pipeline, a vane pump is arranged on the pipeline, the vane pump is connected with a supplemental oil pump motor, and the supplemental oil pump motor is electrically connected to the power distribution cabinet; the electrical control unit comprises an on-site PLC control cabinet, and the on-site PLC control cabinet is electrically connected with the remote centralized control cabinet; the oil cylinder valve group comprises an oil cylinder, and two ends of the oil cylinder are respectively connected with the high-level oil tank and the gate through pipelines; the system solves the problems that the hydropower station gate in the prior art is driven by an external power supply when being opened and closed, the whole gate is controlled to be closed slowly and the whole gate falling time is long, and can realize the extreme challenge of power off of the external power supply and ensure that the gate of the water inlet is closed rapidly in time.
Description
Technical Field
The utility model belongs to the technical field of water turbine unit speed regulators, and particularly relates to a hydropower station water inlet gate quick closing control system based on double oil tanks.
Background
The hydraulic hoist is widely applied to the hoist control of various types of gates of hydropower stations, and when the gate of the hydropower station is closed in the prior art, the closing operation can be carried out by means of an external power supply; even if the external power supply is not needed, the whole gate control faces the serious challenges of low gate closing speed, long gate falling time in the whole process and the like, and the rapid gate closing of the gate at the water inlet of the hydropower station cannot be realized; therefore, a hydropower station water inlet gate quick closing control system based on double oil tanks needs to be designed to solve the problems.
Disclosure of Invention
The utility model aims to solve the technical problem of providing a hydropower station water inlet gate quick closing control system based on double oil tanks, which solves the problems that the hydropower station gate in the prior art is driven by an external power supply when being opened and closed, the whole gate is slow in closing speed and long in whole gate falling time, and has the characteristic of realizing quick closing.
In order to solve the technical problems, the utility model adopts the following technical scheme: a hydropower station water inlet gate quick closing control system based on double oil tanks comprises an electric control unit, a hydraulic unit, an oil cylinder valve group and a sensor module; the hydraulic unit comprises a main oil tank and a high-level oil tank; the main oil tank is communicated with the high-level oil tank through a pipeline, a vane pump is arranged on the pipeline, the vane pump is connected with a supplemental oil pump motor, and the supplemental oil pump motor is electrically connected to the power distribution cabinet; the electrical control unit comprises an on-site PLC control cabinet, and the on-site PLC control cabinet is electrically connected with the remote centralized control cabinet; the cylinder valve group comprises a cylinder, and two ends of the cylinder are respectively connected with the high-level oil tank and the gate through pipelines.
Further, the power distribution cabinet provides a power source for the oil circuit system of the hydraulic unit and the on-site PLC control cabinet.
Further, the on-site PLC control cabinet collects input and output signals of the hydraulic unit, the electromagnetic valve group, the sensor module and the remote centralized control cabinet in real time and performs unified centralized processing, so that on-site operation and control of the hydraulic unit are realized.
Further, the remote centralized control cabinet is in real-time communication with the PLC control cabinet, receives signals sent by the PLC control cabinet, and issues remote control instructions to the PLC for execution.
Further, the main oil tank is used for filtering, storing and recycling redundant oil in the oil way pipeline so as to realize the efficient recycling of the oil; the high-level oil tank is used for storing pressure oil from the main oil tank and timely supplementing a pressure oil source for a pipeline oil way of the quick door closing system; the oil supplementing pump motor realizes the pumping and discharging of the return oil of the main oil tank, and forms pressure oil to be stored in the high-level oil tank.
Preferably, the sensor module comprises a high-level tank level sensor connected with the high-level tank and a main tank level sensor connected with the main tank; the high-level oil tank oil level sensor and the main oil tank oil level sensor are electrically connected with the local PLC control cabinet.
Preferably, the oil cylinder comprises a rodless cavity and a rod cavity, and the rodless cavity and the rod cavity are communicated through a hydraulic pipeline to form a loop; oil in the rod cavity of the oil cylinder enters the rodless cavity of the oil cylinder through the electromagnetic valve to form a differential loop, so that the gate is driven to rapidly close.
Further, the hydraulic line is used to establish a pressure oil passage or return oil passage in the hydraulic system line.
Preferably, the hydraulic pipeline is provided with an electromagnetic valve group and a hydraulic pipeline pressure sensor, and the electromagnetic valve group and the hydraulic pipeline pressure sensor are electrically connected with the local PLC control cabinet; the electromagnetic valve group is used for executing an on-site manual or remote automatic opening and closing instruction, so that an oil way of a system pipeline is directly conducted or cut off.
Preferably, the pipelines of the main oil tank and the high-level oil tank are connected with one-way valves.
Further, the sensor module is used for realizing acquisition, display and alarm of signals of the hydraulic unit; when the power distribution cabinet is electrified, the motor of the oil supplementing pump is started, the oil in the main oil tank is pumped into the high-level oil tank to form pressure oil, and the pressure oil is started when the door is closed quickly; when the quick door closing operation is executed, the oil supplementing pump motor is not started, the power distribution cabinet is not powered, oil in the rod cavity of the oil cylinder can enter the rodless cavity of the oil cylinder through the electromagnetic valve to form a differential loop, meanwhile, oil in the high-level oil tank is supplemented to the rodless cavity of the oil cylinder, and the gate is quickly closed. The rod cavity of the oil cylinder is used for holding pressure, the oil cylinder is held to drive the gate to rapidly close and cut off water flow, a hydropower station unit or a diversion steel pipe is protected, and the risk of flooding the plant of the hydropower station is further effectively reduced.
The hydropower station water inlet gate quick closing control system based on the double oil tanks has the following beneficial effects:
1, when the gate of the water inlet of the hydropower station is closed, the utility model can realize that the gate of the water inlet can be quickly closed in time even facing the extreme challenges of power failure of an external power supply, thereby effectively reducing the risk of flooding the factory building.
2, the utility model adopts a double-oil tank design based on a high-level oil tank and a main oil tank, which not only can ensure that the water inlet gate can be safely and stably closed, but also can effectively solve the problems of low closing speed, long whole-course gate falling time and the like of the water inlet gate.
Drawings
The utility model is further illustrated by the following examples in conjunction with the accompanying drawings:
FIG. 1 is a schematic diagram of a system architecture of the present utility model;
in the figure: the hydraulic oil pump comprises a check valve 1, a vane pump 2, an oil supplementing pump motor 3, a high-level oil tank 4, an oil cylinder 5, a rodless cavity 6, a rod cavity 7, a gate 8, a main oil tank 9, a high-level oil tank oil level sensor 10, an on-site PLC control cabinet 11, a hydraulic pipeline pressure sensor 12, a hydraulic pipeline 13, an electromagnetic valve bank 14, a main oil tank oil level sensor 15, a power distribution cabinet 16 and a remote centralized control cabinet 17.
Detailed Description
As shown in fig. 1, a hydropower station water inlet gate quick closing control system based on double oil tanks comprises an electric control unit, a hydraulic unit, an oil cylinder 5 valve group and a sensor module; the hydraulic unit comprises a main oil tank 9 and a high-level oil tank 4; the main oil tank 9 is communicated with the high-level oil tank 4 through a pipeline, a vane pump 2 is arranged on the pipeline, the vane pump 2 is connected with a supplemental oil pump motor 3, and the supplemental oil pump motor 3 is electrically connected to the power distribution cabinet 16; the electrical control unit comprises an on-site PLC control cabinet 11, and the on-site PLC control cabinet 11 is electrically connected with a remote centralized control cabinet 17; the cylinder 5 valve group comprises a cylinder 5, and two ends of the cylinder 5 are respectively connected with the high-level oil tank 4 and the gate 8 through pipelines.
Further, the power distribution cabinet 16 provides a power source for the oil circuit system of the hydraulic unit and the on-site PLC control cabinet 11.
Further, the on-site PLC control cabinet 11 collects input and output signals of the hydraulic unit, the solenoid valve group 14, the sensor module and the remote centralized control cabinet 17 in real time, and performs unified centralized processing, thereby realizing on-site operation and control of the hydraulic unit.
Further, the remote centralized control cabinet 17 communicates with the PLC control cabinet in real time, receives signals sent by the PLC control cabinet, and issues remote control instructions to the PLC for execution.
Further, the main oil tank 9 is used for filtering, storing and recovering redundant oil in the oil way pipeline so as to realize the efficient recycling of the oil; the high-level oil tank 4 is used for storing pressure oil from the main oil tank 9 and timely supplementing a pressure oil source for a pipeline oil way of the quick door closing system; the oil supplementing pump motor 3 realizes the pumping and discharging of the return oil of the main oil tank 9, and forms pressure oil to be stored in the high-level oil tank 4.
Preferably, the sensor module comprises a high-level tank 4 level sensor connected with the high-level tank 4 and a main tank 9 level sensor connected with the main tank 9; the oil level sensor of the high-level oil tank 4 and the oil level sensor of the main oil tank 9 are electrically connected with the local PLC control cabinet 11.
Preferably, the oil cylinder 5 comprises a rodless cavity 6 and a rod cavity 7, and the rodless cavity 6 and the rod cavity 7 are communicated through a hydraulic pipeline 13 to form a loop; oil in a rod cavity 7 of the oil cylinder 5 enters a rodless cavity 6 of the oil cylinder 5 through an electromagnetic valve to form a differential loop, so that a gate 8 is driven to rapidly close.
Further, the hydraulic line 13 is used to establish a pressure oil passage or return oil passage in the hydraulic system line.
Preferably, the hydraulic pipeline 13 is provided with an electromagnetic valve group 14 and a hydraulic pipeline 13 pressure sensor 12, and the electromagnetic valve group 14 and the hydraulic pipeline 13 pressure sensor 12 are electrically connected with the local PLC control cabinet 11; the solenoid valve group 14 is used for executing local manual or remote automatic opening and closing instructions so as to directly conduct or cut off the system pipeline oil way.
Preferably, the main tank 9 and the high-level tank 4 are connected with a check valve 1.
The working principle of the hydropower station water inlet gate quick closing control system based on the double oil tanks is as follows:
the sensor module is used for realizing acquisition, display and alarm of signals of the hydraulic unit; when the power distribution cabinet 16 is electrified, the oil supplementing pump motor 3 is started, the oil in the main oil tank 9 is pumped to the high-level oil tank 4 to form pressure oil, and the pressure oil is started when the door is closed quickly; when the quick door closing operation is executed, the oil supplementing pump motor 3 is not started, the power distribution cabinet 16 is powered or not, oil in the rod cavity 7 of the oil cylinder 5 enters the rodless cavity 6 of the oil cylinder 5 through the electromagnetic valve to form a differential loop, meanwhile, oil in the high-level oil tank 4 supplements oil to the rodless cavity 6 of the oil cylinder 5, and the gate 8 is quickly closed. The cylinder 5 has a rod cavity 7 for holding pressure, and the cylinder 5 is held to drive the gate 8 to rapidly close and cut off water flow, so that a hydropower station unit or a diversion steel pipe is protected, and the risk of flooding a factory building of the hydropower station is further effectively reduced.
The above embodiments are merely preferred embodiments of the present utility model, and should not be construed as limiting the present utility model, and the embodiments and features of the embodiments of the present utility model may be arbitrarily combined with each other without collision. The protection scope of the present utility model is defined by the claims, and the protection scope includes equivalent alternatives to the technical features of the claims. I.e., equivalent replacement modifications within the scope of this utility model are also within the scope of the utility model.
Claims (4)
1. Hydropower station water inlet gate quick door closing control system based on double oil tanks, characterized in that: the hydraulic control system comprises an electric control unit, a hydraulic unit, an oil cylinder valve group and a sensor module; the hydraulic unit comprises a main oil tank (9) and a high-level oil tank (4); the main oil tank (9) is communicated with the high-level oil tank (4) through a pipeline, a vane pump (2) is arranged on the pipeline, the vane pump (2) is connected with a supplementary oil pump motor (3), and the supplementary oil pump motor (3) is electrically connected to the power distribution cabinet (16); the electrical control unit comprises an on-site PLC control cabinet (11), and the on-site PLC control cabinet (11) is electrically connected with a remote centralized control cabinet (17); the oil cylinder valve group comprises an oil cylinder (5), and two ends of the oil cylinder (5) are respectively connected with the high-level oil tank (4) and the gate (8) through pipelines; the sensor module comprises a high-level oil tank oil level sensor (10) connected with the high-level oil tank (4) and a main oil tank oil level sensor (15) connected with the main oil tank (9); the high-level oil tank oil level sensor (10) and the main oil tank oil level sensor (15) are electrically connected with the local PLC control cabinet (11).
2. The hydropower station water inlet gate quick closing control system based on double oil tanks as claimed in claim 1, wherein: the oil cylinder (5) comprises a rodless cavity (6) and a rod cavity (7), and the rodless cavity (6) and the rod cavity (7) are communicated through a hydraulic pipeline (13) to form a loop.
3. The hydropower station water inlet gate quick closing control system based on double oil tanks as claimed in claim 2, wherein: the hydraulic pipeline (13) is provided with an electromagnetic valve group (14) and a hydraulic pipeline pressure sensor (12), and the electromagnetic valve group (14) and the hydraulic pipeline pressure sensor (12) are electrically connected with the local PLC control cabinet (11).
4. The hydropower station water inlet gate quick closing control system based on double oil tanks as claimed in claim 1, wherein: the pipelines of the main oil tank (9) and the high-level oil tank (4) are connected with a one-way valve (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320962522.4U CN220101666U (en) | 2023-04-25 | 2023-04-25 | Hydropower station water inlet gate quick closing control system based on double oil tanks |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320962522.4U CN220101666U (en) | 2023-04-25 | 2023-04-25 | Hydropower station water inlet gate quick closing control system based on double oil tanks |
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| Publication Number | Publication Date |
|---|---|
| CN220101666U true CN220101666U (en) | 2023-11-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202320962522.4U Active CN220101666U (en) | 2023-04-25 | 2023-04-25 | Hydropower station water inlet gate quick closing control system based on double oil tanks |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116753198A (en) * | 2023-04-25 | 2023-09-15 | 中国长江电力股份有限公司 | Rapid door closing control system and method for water inlet gate of hydropower station based on double oil tanks |
-
2023
- 2023-04-25 CN CN202320962522.4U patent/CN220101666U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116753198A (en) * | 2023-04-25 | 2023-09-15 | 中国长江电力股份有限公司 | Rapid door closing control system and method for water inlet gate of hydropower station based on double oil tanks |
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