A hydraulic station for water gate

Abstract

The utility model discloses a sluice gate hydraulic station, include: oil tank, gear pump, high pressure oil circuit, oil return circuit, superimposed control valve group, manual control oil circuit, execute oil cylinder, oil return filter, control valve group integrated electromagnetic reversing valve, superimposed overflow valve, superimposed throttle valve and balance electromagnetic ball valve valve group, manual control oil circuit is parallelly connected in main oil circuit and contains hydraulic lock, the utility model discloses through superimposed integration reduces the leakage point maintenance efficiency promotion, double oil circuit redundancy improves the reliability of hydraulic station, compact structure, increase manual reversing valve and manual pump, under the condition of power failure, the gate can also simultaneously safe and effective opening and closing, be applicable to the high -efficient safe drive of water conservancy hub sluice gate.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic control equipment technology, specifically a hydraulic station for a sluice gate. Background Technology

[0002] As a key control component of water conservancy projects, the reliability of the hydraulic drive system of sluice gates directly affects the safety of the project. Existing technologies have several shortcomings, leading to insufficient reliability. For example, hydraulic pumps are mostly configured as single pumps, lacking backup units in case of failure, resulting in the risk of gate jamming and requiring several hours of emergency repairs; monitoring systems are rudimentary, failing to provide real-time warnings for abnormal oil levels, temperatures, and pressures, posing potential hazards; valve assemblies and pipelines are scattered, requiring the disassembly of multiple pipelines to replace a single valve, making operation inconvenient; furthermore, the system has numerous leakage points, making maintenance cumbersome.

[0003] Therefore, there is an urgent need for a hydraulic power station that combines redundancy protection, intelligent monitoring, and an integrated structure. Utility Model Content

[0004] In view of the problems existing in the prior art, this utility model provides a hydraulic station for sluice gates to solve the problems of insufficient reliability, lagging monitoring and cumbersome maintenance of existing equipment.

[0005] A hydraulic station for a sluice gate includes: an oil tank, a gear pump mounted on the oil tank, the oil outlet of the gear pump connected to a high-pressure oil circuit, a control valve assembly connected to the high-pressure oil circuit, the control valve assembly connected to an actuator cylinder, the control valve assembly being used to control the extension and retraction of the actuator cylinder; the actuator cylinder being connected to the oil tank via a return oil circuit; and a manual control oil circuit also mounted on the oil tank, the manual control oil circuit being connected in parallel with the main oil circuit, and the manual control oil circuit controlling the extension and retraction of the actuator cylinder via a handle.

[0006] As a preferred embodiment of this utility model, the manual control oil circuit includes a manual pump installed on the oil tank. The oil outlet of the manual pump is connected to a check valve. The oil outlet of the check valve is sequentially connected to a manual directional valve and a hydraulic lock. The oil outlet of the hydraulic lock is connected to the actuator cylinder and connected to the oil tank through a return oil circuit.

[0007] As a preferred embodiment of this utility model, the control valve group includes a series of electromagnetic directional valves, stacked relief valves, stacked throttle valves, and balanced electromagnetic ball valves connected in series.

[0008] As a preferred embodiment of this utility model, the balanced electromagnetic ball valve assembly includes a two-position two-way solenoid valve connected in series in the oil inlet of the rodless chamber of the actuator cylinder, a one-way valve connected in series in the oil inlet of the rod chamber of the actuator cylinder, and an overflow valve connected between the oil inlet of the rodless chamber and the oil inlet of the rod chamber.

[0009] As a preferred embodiment of this utility model, a pressure sensor is connected to the high-pressure oil line; and a return oil filter is connected to the return oil line.

[0010] In a preferred embodiment of this utility model, the hydraulic cylinders are connected in parallel as two cylinders.

[0011] As a preferred embodiment of this utility model, the oil tank is also equipped with a liquid level thermometer, an air filter and a liquid level temperature sensor.

[0012] By adopting the above technical solution, this utility model has the following beneficial effects:

[0013] This utility model features a high degree of integration, employing a stacked valve assembly design to integrate directional, pressure, and flow control elements into one unit. This reduces pipeline connections and minimizes leakage points compared to traditional decentralized layouts, lowering the failure rate and solving the problem of frequent oil leakage in existing pumping stations. The stacked throttle valve can linearly adjust the cylinder flow rate, and in conjunction with the balanced solenoid ball valve assembly, it buffers pressure fluctuations, ensuring stable gate operation and preventing impact at the endpoint. In case of automatic oil circuit failure, the gate operation can be controlled via a manual pump and manual directional valve. Even in the event of a power outage, the gate can still be opened and closed safely and effectively. The hydraulic lock can lock the cylinder position in real time, improving the operational safety of the water conservancy project. The return oil filter can filter oil impurities, and the stacked valve assembly is easy to disassemble and replace individually. Its compact structure reduces maintenance workload and improves efficiency. Attached Figure Description

[0014] Figure 1 This is a diagram of the overall hydraulic system of this utility model;

[0015] Figure 2 This is a schematic diagram of the control valve assembly of this utility model;

[0016] Figure 3 This is a schematic diagram of the manual control oil circuit of this utility model;

[0017] Figure 4 This is a three-dimensional front view of the hydraulic station of this utility model;

[0018] Figure 5 This is a three-dimensional schematic diagram of the back of the hydraulic station of this utility model.

[0019] In the diagram: 1. Oil tank; 2. Gear pump; 3. High-pressure oil circuit; 4. Return oil circuit; 5. Control valve assembly; 51. Solenoid directional valve; 52. Stacked relief valve; 53. Stacked throttle valve; 54. Balanced solenoid ball valve assembly; 6. Manual control oil circuit; 61. Manual pump; 62. Manual directional valve; 63. Hydraulic lock; 7. Actuator cylinder; 8. Return oil filter. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Example 1

[0022] like Figures 1 to 5 As shown, a specific embodiment of the hydraulic station for a sluice gate according to the present invention includes: an oil tank 1, a gear pump 2, a high-pressure oil circuit 3, a return oil circuit 4, a control valve group 5, a manual control oil circuit 6, an actuator cylinder 7, and a return oil filter 8.

[0023] Oil Tank 1 Structure: Oil Tank 1 is made of aluminum alloy with a volume of 63L. An air filter is installed on the top, and a drain ball valve is installed on the bottom side. The gear pump 2 is a MARZACHI HFGHP2A-D-16-FG type (displacement 11.5cc / r, rated pressure 120bar, flow rate 16L / min), driven by a HOYER HFHMA3-112M2-4-4KW-B5 type three-phase motor (IE3 energy efficiency, 1450rpm). Its oil inlet is inserted into the bottom of the oil tank 1 through an oil suction pipe, and the oil outlet is connected to the P port of the control valve group 5 through the high-pressure oil circuit 3. The oil tank 1 is equipped with a liquid level thermometer and a liquid level temperature sensor. The data is transmitted to the local control cabinet to realize audible and visual alarms for high and low oil levels and excessive oil temperature.

[0024] A pressure sensor and a main relief valve (unlabeled) are connected to high-pressure oil circuit 3. Figure 2 As shown in the figure, the pressure sensor is used for pressure anomaly monitoring; the main relief valve is set to a pressure of 120 bar to prevent system overpressure; the superimposed relief valve 52 in the control valve group 5 is an ATOS HMP-013 / 210 type with a set pressure of 80 bar, which is the pressure regulating valve of the hydraulic cylinder branch to avoid hydraulic cylinder overload;

[0025] The control valve assembly 5 is installed in a stacked configuration. The solenoid directional valve 51 is a 4WE6 type three-position four-way solenoid valve used to switch the direction of the oil circuit. The stacked relief valve 52 is set to a pressure of 80 bar and acts as a system safety valve to prevent overpressure. The stacked throttle valve 53 is a one-way throttle valve. The balanced solenoid ball valve assembly 54 includes a two-position two-way solenoid valve connected in series in the oil inlet of the rodless chamber of the actuator cylinder, a one-way valve connected in series in the oil inlet of the rod chamber of the actuator cylinder, and a relief valve connected between the oil inlet of the rodless chamber and the oil inlet of the rod chamber. The relief valve in the balanced solenoid ball valve assembly 54 has two connection points in the oil inlet of the rod chamber, which are respectively located at the upper and lower ends of the one-way valve. The pressure adjustment range of the balanced solenoid ball valve assembly is 70-280 bar.

[0026] The manual control oil circuit 6 is connected in parallel between the high-pressure oil circuit 3 and the actuator cylinder 7, and includes: a manual pump 61, a manual directional valve 62, and a hydraulic lock 63. The manual pump is a HANSA-FLEX HKPAM0144501 type; the manual directional valve 62 is a three-position four-way valve; and the hydraulic lock 63 is used to lock the pressure when the cylinder stops.

[0027] The above-mentioned model and specifications are only selected for the actual implementation scheme to ensure that the purpose of the scheme can be achieved. Those skilled in the art may also select other models, as long as the purpose of the scheme can be achieved, and there are no restrictions here.

[0028] The working principle of this utility model is as follows: In automatic working mode: the gear pump 2 starts, and the pressurized oil enters the control valve group 5 through the high-pressure oil circuit 3. The solenoid reversing valve 51 Y1 is energized, and the pressurized oil enters the rodless chamber of the actuator cylinder 7 after the flow rate is regulated by the superimposed throttle valve 53. The oil in the rod chamber flows back to the oil tank 1 through the balance solenoid ball valve group 54, the return oil circuit 4, and the return oil filter 8, driving the gate to open; the superimposed overflow valve 52 monitors the system pressure in real time, and overflows to unload when there is overpressure.

[0029] In emergency manual mode: turn off gear pump 2, operate manual pump 61, turn manual directional valve 62 to the "open" position, pressurized oil enters rodless chamber of actuator cylinder 7 through hydraulic lock 63 to realize emergency opening of gate; hydraulic lock 63 can lock cylinder at any position to prevent gate from moving accidentally.

[0030] All components mentioned in this article are general standard parts or components known to those skilled in the art. Their structures and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods, so they will not be described in detail here.

[0031] While the specific embodiments of this utility model have been described in detail above, this utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this utility model. Modifications or variations that do not involve creative labor are still within the protection scope of this utility model.

Claims

1. A hydraulic station for a sluice gate, characterized in that, include: The oil tank is equipped with a gear pump. The outlet of the gear pump is connected to a high-pressure oil circuit, which is connected to a control valve assembly. The control valve assembly is connected to the actuator cylinder and is used to control the extension and retraction of the actuator cylinder. The actuator cylinder is connected to the oil tank via a return oil circuit. The oil tank is also equipped with a manual control oil circuit, which is connected in parallel with the main oil circuit. It is used to manually control the extension and retraction of the actuator cylinder.

2. A hydraulic station for water gates according to claim 1, characterized in that: The manual control oil circuit includes a manual pump installed on the oil tank. The oil outlet of the manual pump is connected to a check valve. The oil outlet of the check valve is connected in sequence to a manual directional valve and a hydraulic lock. The oil outlet of the hydraulic lock is connected to the actuator cylinder. The manual control oil circuit is connected to the oil tank through a return oil circuit.

3. A hydraulic station for water gates according to claim 1, characterized in that: The control valve group includes a series of electromagnetic directional valves, stacked relief valves, stacked throttle valves, and balanced electromagnetic ball valves connected in series.

4. A hydraulic station for water gates according to claim 3, characterized in that: The balanced solenoid ball valve assembly includes a two-position two-way solenoid valve connected in series in the oil inlet of the rodless chamber of the actuator cylinder, a one-way valve connected in series in the oil inlet of the rod chamber of the actuator cylinder, and an overflow valve connected between the oil inlet of the rodless chamber and the oil inlet of the rod chamber.

5. A hydraulic station for water gates according to claim 1, characterized in that: A pressure sensor is connected to the high-pressure oil line; a return oil filter is connected to the return oil line.

6. A hydraulic station for water gates according to claim 1, characterized in that: The hydraulic cylinders are connected in parallel in two units.

7. A hydraulic station for water gates according to claim 1, characterized in that: The oil tank is also equipped with a liquid level thermometer, an air filter, and a liquid level temperature sensor.

Images