Far-drive water pressure type automatic opening and closing gate system

Abstract

The invention belongs to the technical field of gate control, and particularly discloses a far-drive water pressure type automatic gate opening and closing system which comprises a gate and gate buttresses, the two gate buttresses are separately arranged on the two sides of a drainage channel in parallel, a communicating pipeline is arranged at the bottom of the drainage channel, and the two ends of the communicating pipeline extend into the gate buttresses on the two sides correspondingly. Float pistons are arranged in the communicating pipelines in the gate buttresses on the two sides, gate connecting pieces are arranged on the float pistons, the gate is arranged in the drainage channel, and the two sides of the gate are connected with the gate connecting pieces in the gate buttresses respectively. Opening and closing control of the gate can be achieved only through water energy, electric energy and manpower can be effectively saved, environmental protection is facilitated, use and management are convenient, economical efficiency is high, and the gate is suitable for being applied and popularized in rural small and micro water conservancy projects.

Description

Technical Field

[0001] The invention belongs to the technical field of gate control, and in particular relates to a remote-driven hydraulic automatic gate opening and closing system. Background Art

[0002] Rural water conservancy infrastructure is generally small in scale, but its role is very large. The facilities are relatively simple but have all the necessary facilities. In particular, the construction of rural water networks based on the "three-dimensional water conservancy system on slopes" in rural areas has brought the role of water conservancy to an unprecedented level, realizing that water conservancy serves production, life, ecology and other aspects of rural society. At this time, the rural water conservancy system is very complicated, becoming a system with complicated tasks, "multiple gates and multiple routes" ("multiple routes" refers to the large number of large and small channels or pipelines for water transmission, and "multiple gates" refers to the large number of various gates, doumen gates and other controllable water flow "switches" used to control water flow) and "switches and closures" that operate frequently. In the past, there were not many rural water conservancy gates. Larger or heavier gates could be opened and closed by electric or multi-person manual hoists, and smaller or lighter gates could be opened and closed by manual operation (such as plug plates, reels, manual hoists, etc.). The management of the opening and closing of such gates is still extensive in terms of hierarchy, and the level of water resource utilization and management needs to be further improved.

[0003] The "multiple gates and multiple routes" formed by the slope water conservancy system in mountainous rural areas is a difficult problem in the operation and management of this system. Once the water is put into the "multiple routes", it does not need to be managed. What needs to be managed is the "multiple gates", that is, the adjustment of the flow direction and water volume of the water flow. It can be seen that the management of the "multiple gates" is very complicated. If these "multiple gates" are guaranteed by sufficient power supply, there will be no big problem, but for the vast rural areas, especially remote mountainous rural areas or suburban rural areas, there may be no electricity / power shortage. As a result, it may cause the operation and management to be out of place or absent at critical moments such as flood control and water supply, which will lead to immeasurable losses.

[0004] Since the structure of the rural slope water conservancy system in mountainous areas is relatively large and complex, the operating conditions of the gates at all levels are very complex. Some need to be opened, some need to be closed, and some need to be half-open and half-closed. In addition, the power supply in some remote rural areas or suburban rural areas cannot be guaranteed to be continuous and uninterrupted during tense periods, or it is difficult to ensure that there will be no power outages at critical moments. Therefore, it is very important to take effective measures that do not rely on power supply to ensure the normal operation of gates at all levels in the rural slope water conservancy system. Summary of the invention

[0005] The purpose of the present invention is to provide a remote-driven hydraulic automatic gate opening and closing system to solve the above-mentioned problems existing in the prior art.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] The present invention provides a remote-driven hydraulic automatic opening and closing gate system, comprising a gate and a gate pier, wherein two gate piers are provided, and the two gate piers are parallel and separated on both sides of a drainage channel, a connecting pipe is arranged at the bottom of the drainage channel, and both ends of the connecting pipe are respectively extended to the gate piers on both sides, a buoy piston is provided in the connecting pipes in the gate piers on both sides, a gate connector is provided on the buoy piston, the gate is arranged in the drainage channel, and is used to open or close the drainage channel, and the two sides of the gate are respectively connected to the gate connector in the gate pier.

[0008] When it is used, the water stored on the dam can be introduced into the connecting pipe, and the head difference between the upstream and downstream can be used to fill the connecting pipe with the introduced water, and generate buoyancy to push the buoy pistons in the gate piers on both sides upward, so that the buoy pistons in the gate piers on both sides move upward synchronously. When the buoy pistons on both sides move upward, they will drive the gate to move upward synchronously through the gate connector, so that the water flow in the drainage channel passes through the bottom of the gate, so as to realize the drainage function. When it is necessary to fix the opening and closing degree of the gate, the water stored in the connecting pipe can be stopped, so that the water pressure in the connecting pipe can be kept fixed. When it is necessary to close the gate, the water in the connecting pipe can be gradually discharged to release the pressure, so that the buoy pistons in the gate piers on both sides move downward synchronously, and the gate connector drives the gate to move downward synchronously until the drainage channel is completely closed.

[0009] In a possible design, the connecting pipe is connected to a water inlet pipe, the water inlet pipe is connected to the connecting pipe, and the water inlet pipe is provided with a water inlet valve. When it is used, the water stored on the dam can be introduced into the connecting pipe through the water inlet pipe, and the water inlet valve is opened when the water stored on the dam needs to be introduced, and closed when the water stored on the dam does not need to be introduced.

[0010] In a possible design, the system further includes a pressure pipe, one end of which passes through the upstream dam body and extends into the upstream water body, and the other end is connected to the water inlet pipe, and the pressure pipe is connected to the water inlet pipe. When it is used, the water stored in the dam body can be directly transported to the water inlet pipe through the pressure pipe, and then input into the connecting pipe through the water inlet pipe.

[0011] In a possible design, the pressure pipe is laid along the drainage channel. When used, by laying the pressure pipe along the drainage channel, more materials can be saved and the laying is more convenient.

[0012] In a possible design, the communicating pipe is provided with a drain port and a drain valve. When used, the water in the communicating pipe can be directly discharged through the drain port and the drain valve.

[0013] In a possible design, the gate connector is sleeved on the outside of the connecting pipe in the gate support pier. When used, the gate connector can play an effective force transmission role to freely drive the gate to move synchronously according to the up and down movement of the buoy piston.

[0014] In a possible design, a water sealing strip is provided on the contact surface between the gate connector and the gate buttress. When used, the water sealing strip can stop water and prevent water from flowing into the gate buttress.

[0015] In a possible design, the gate pier is a concrete pier. When used, the concrete pier is easy to be cast on site, and the material is simple and easy to obtain, the production cost is low, and the concrete pier also has the advantages of being strong and durable and having a long service life.

[0016] Beneficial effects:

[0017] 1. Save electricity. The present invention can realize the opening and closing of the gate only by using water energy, and does not need to be driven by electricity, which can effectively save electricity and save the cost of power facilities. It is of great significance in remote mountainous areas / rural areas, and can meet the water supply demand without consuming electricity, and can also effectively ensure water supply safety and flood control safety.

[0018] 2. Save manpower. At present, some small and micro channels in rural areas use simple devices such as wooden plates to control the gate opening, but they are not durable and are prone to accidents. The remote-driven hydraulic automatic opening and closing gate of the present invention can effectively save rural human resources or labor, and can be used according to local conditions to reduce the occurrence of accidents.

[0019] 3. Environmentally friendly. The remote-driven hydraulic automatic opening and closing gate of the present invention has no impact on the ecological environment, does not require electricity, can reduce carbon emissions, and achieve environmental protection purposes.

[0020] 4. Easy to manage. The present invention mainly transmits water energy through hydraulic pipes. Due to the incompressibility of water, there is no time lag effect in the water energy transmission, which facilitates the use of valves for efficient opening and closing control.

[0021] 5. High economic efficiency. The invention adopts a remote-driven hydraulic automatic gate to effectively control the flow rate, and its construction cost is not high, which is relatively economical. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 It is a schematic diagram of the system application of the present invention;

[0024] Figure 2 It is a partial structural schematic diagram of the system of the present invention at a first viewing angle;

[0025] Figure 3 is a partial structural schematic diagram of the system of the present invention at a second viewing angle;

[0026] Figure 4 It is a schematic diagram of force analysis of the system of the present invention when it is used.

[0027] In the figure: 1. gate; 2. gate pier; 3. drainage channel; 4. connecting pipe; 5. buoy piston; 6. gate connector; 7. water inlet pipe; 8. pressure pipe. DETAILED DESCRIPTION

[0028] It should be noted that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention. The specific structures and functional details disclosed herein are only used to describe the exemplary embodiments of the present invention. However, the present invention can be embodied in many alternative forms, and it should not be understood that the present invention is limited to the embodiments set forth herein.

[0029] It should be understood that, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, an indirect connection through an intermediate medium, or the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments can be understood according to specific circumstances.

[0030] In the following description, certain details are provided to facilitate a complete understanding of the example embodiments. However, it will be appreciated by those of ordinary skill in the art that the example embodiments may be implemented without these certain details. For example, the system may be shown in a block diagram to avoid obscuring the example with unnecessary details. In other embodiments, well-known processes, structures, and techniques may not be shown in unnecessary detail to avoid obscuring the embodiments.

[0031] Example:

[0032] This embodiment provides a remote-driven hydraulic automatic gate opening and closing system. Figures 1 to 3As shown, it includes a gate 1 and a gate pier 2, wherein two gate piers 2 are provided, and the two gate piers 2 are parallel and separated on both sides of a drainage channel 3, a connecting pipe 4 is arranged at the bottom of the drainage channel 3, and both ends of the connecting pipe 4 extend to the gate piers 2 on both sides respectively, a buoy piston 5 is provided in the connecting pipe 4 in the gate piers 2 on both sides, and a gate connector 6 is provided on the buoy piston 5, the gate 1 is arranged in the drainage channel 3, and is used for opening or closing the drainage channel 3, and the two sides of the gate 1 are respectively connected to the gate connector 6 in the gate pier 2.

[0033] In specific implementation, the water stored on the dam can be introduced into the connecting pipe 4, and the head difference between the upstream and downstream can be used to fill the connecting pipe 4 with the introduced water, and generate buoyancy to push the buoy pistons 5 in the gate piers 2 on both sides upward, so that the buoy pistons 5 in the gate piers 2 on both sides move upward synchronously. When the buoy pistons 5 on both sides move upward, they will drive the gate 1 to move upward synchronously through the gate connector 6, so that the water flow in the drainage channel 3 passes through the bottom of the gate 1, so as to realize the drainage function. When it is necessary to fix the opening and closing degree of the gate 1, the introduction of the stored water into the connecting pipe 4 can be stopped, so that the water pressure in the connecting pipe 4 is maintained at a fixed level. When it is necessary to close the gate 1, the water in the connecting pipe 4 can be gradually discharged to release the pressure, so that the buoy pistons 5 in the gate piers 2 on both sides move downward synchronously, and drive the gate 1 to move downward synchronously through the gate connector 6 until the drainage channel 3 is completely closed.

[0034] Furthermore, the communicating pipe 4 is connected to a water inlet pipe 7, which is in communication with the communicating pipe 4 and is provided with a water inlet valve. In specific implementation, the water stored on the dam can be introduced into the communicating pipe 4 through the water inlet pipe 7, and the water inlet valve is opened when the water stored on the dam needs to be introduced, and closed when the water stored on the dam does not need to be introduced.

[0035] Furthermore, the system further comprises a pressure pipe 8, one end of which passes through the upstream dam body and extends into the upstream water body, and the other end is connected to the water inlet pipe 7, and the pressure pipe 8 is in communication with the water inlet pipe 7. In specific implementation, the stored water in the dam body can be directly transported to the water inlet pipe 7 through the pressure pipe 8, and then input into the connecting pipe 4 through the water inlet pipe 7.

[0036] Furthermore, the pressure pipe 8 is laid along the drainage channel 3. In specific implementation, by laying the pressure pipe 8 along the drainage channel 3, more materials can be saved and the laying is more convenient.

[0037] Furthermore, the communication pipe 4 is provided with a drain port and a drain valve. In specific implementation, the water in the communication pipe 4 can be directly discharged through the drain port and the drain valve.

[0038] Furthermore, the gate connector 6 is sleeved on the outside of the connecting pipe 4 in the gate support pier 2. In specific implementation, the gate connector 6 can play an effective force transmission role, so as to freely drive the gate 1 to move synchronously according to the up and down movement of the buoy piston 5.

[0039] Furthermore, a water sealing strip is provided on the contact surface between the gate connector 6 and the gate buttress 2. In specific implementation, the water sealing strip can play a role of stopping water and prevent water from flowing into the gate buttress 2.

[0040] Furthermore, the gate buttress 2 is a concrete buttress. In specific implementation, the concrete buttress is easy to be cast on site, and the material is simple and easy to obtain, the production cost is low, and at the same time, the concrete buttress also has the advantages of being strong and durable, and having a long service life.

[0041] When the gate system is in use, its force analysis is as follows: Figure 4 As shown, it is known that:

[0042] 1. The head difference from the reservoir water body of the upstream weir or dam to the bottom of the gate is H;

[0043] 2. The cross-sectional areas of the buoy pistons in the piers on both sides of the gate are S1 and S2 respectively, and the corresponding buoyancy of the bottom water is F1 and F2;

[0044] 3. The buoy pistons on both sides of the gate are symmetrically distributed. The gravity of the buoy pistons and connecting parts on both sides are G1 and G2 respectively. The gate gravity is W. The buoy piston is connected to the gate through the connecting parts (the connection method is generally top welding, and water seal welding can also be used).

[0045] Obviously, when the water head height difference H gradually increases to a sufficiently high level, the water pressures F1 and F2 at the bottom of the buoy piston continue to increase until the buoy and gate with a total weight of G1+G2+W are lifted, thereby allowing water to flow through the gate.

[0046] At this time, the following relationship exists:

[0047] F1+F2≥G1+G2+W

[0048] Generally, the gate system is symmetrical, so F1=F2, G1=G2, S1=S2, and the pressure at the bottom of the buoy is:

[0049]

[0050] Since the total gravity of the buoys on both sides G1+G2=2G is much smaller than the gate weight W, the above formula is simplified to:

[0051]

[0052] Therefore, the relationship between the head difference H, the buoy cross-sectional area S, and the gate gravity W that enable the remote-driven hydraulic automatic gate to open is:

[0053]

[0054] Where, η = 0.85 is the comprehensive loss coefficient of head difference; ρ w =1000kg / m 3 For small-scale water conservancy projects in rural areas, the flow rate of drainage channels is generally 0.05-0.5m 3 / s, therefore, the gates at all levels are also small in size and are generally light gates. Assuming that the gate weights are set in the range of 100kg to 1000kg, when the cross-sectional area of ​​the buoys on both sides is fixed at 0.5m 2 (buoy diameter is about 80 cm), the relationship between the required head difference and the gate weight is shown in the following table:

[0055]

[0056] For example, for a gate weighing 500kg, the minimum head difference that can lift it is 0.59m, that is, a lighter gate can be lifted by a smaller head pressure. Similarly, the greater the head difference, the heavier the lifted gate.

[0057] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A remote-driven hydraulic automatic gate opening and closing system, characterized in that: The invention comprises a gate (1) and a gate buttress (2), wherein two gate buttresses (2) are provided, and the two gate buttresses (2) are parallel and separated on both sides of a drainage channel (3), a connecting pipe (4) is arranged at the bottom of the drainage channel (3), and the two ends of the connecting pipe (4) respectively extend into the gate buttresses (2) on both sides, a buoy piston (5) is provided in the connecting pipe (4) in the gate buttresses (2) on both sides, and a gate connecting piece (6) is provided on the buoy piston (5), the gate (1) is arranged in the drainage channel (3) and is used to open or close the drainage channel (3), and the two sides of the gate (1) are respectively connected to the gate connecting piece (6) in the gate buttress (2).

2. A remote-driven hydraulic automatic gate opening and closing system according to claim 1, characterized in that: The communicating pipe (4) is connected to a water inlet pipe (7), the water inlet pipe (7) is in communication with the communicating pipe (4), and the water inlet pipe (7) is provided with a water inlet valve.

3. A remote-driven hydraulic automatic gate opening and closing system according to claim 2, characterized in that: The system further comprises a pressure pipe (8), one end of which passes through the upstream dam body and extends into the upstream water body, and the other end of which is connected to the water inlet pipe (7), and the pressure pipe (8) is in communication with the water inlet pipe (7).

4. A remote-driven hydraulic automatic gate opening and closing system according to claim 3, characterized in that: The pressure pipe (8) is arranged along the drainage channel (3).

5. The remote-driven hydraulic automatic gate opening and closing system according to claim 1 is characterized in that: The communicating pipe (4) is provided with a drain port and a drain valve.

6. The remote-driven hydraulic automatic gate opening and closing system according to claim 1 is characterized in that: The gate connecting piece (6) is sleeved on the outside of the connecting pipe (4) in the gate buttress (2).

7. The remote-driven hydraulic automatic gate opening and closing system according to claim 1 is characterized in that: The contact surface between the gate connecting piece (6) and the gate buttress (2) is provided with a water sealing strip.

8. The remote-driven hydraulic automatic gate opening and closing system according to claim 1 is characterized in that: The gate buttress (2) is a concrete buttress.

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