Hydraulic ram system

Abstract

The utility model provides a water hammer pump system which comprises a water hammer pump body, a water escape valve, a water delivery valve and a pressure tank, the water hammer pump body comprises a main body pipeline, a water escape valve, a water delivery valve and a pressure tank, the main body pipeline comprises a main body pipe and a third branch pipe which are communicated, the main body pipe is provided with a water inlet, a first connector and a second connector, and the third branch pipe is provided with a third connector and a fourth connector; the pressure tank and the water delivery valve are arranged at the second interface; the first one-way valve is arranged at the third connector and is communicated from the outside to the interior of the third branch pipe; the pneumatic driving device is communicated with the fourth connector through the second one-way valve, and the second one-way valve is arranged to be communicated in the direction from the interior of the third branch pipe to the pneumatic driving device. When the hydraulic ram pump body continuously operates, the liquid level in the third branch pipe can periodically ascend and descend, and the second one-way valve can periodically supply air to the pneumatic driving device, so that continuous water pumping of the pressure tank can be realized, and continuous action of the pneumatic driving device can also be realized.

Description

Technical Field

[0001] This utility model relates to the field of energy conservation and environmental protection technology, and more specifically, to a water hammer pump system. Background Technology

[0002] The water hammer pump body includes components such as a drain valve, a delivery valve, a pressure tank, and main pipelines. Both the drain valve and the delivery valve are check valves. The main pipelines have an inlet, a first interface, and a second interface. The pressure tank has a third interface and a discharge port. The drain valve is installed at the first interface, and the delivery valve connects the second interface and the third interface. The second interface has an air inlet on its wall.

[0003] A water hammer pump is an automatic water pumping machine that utilizes the power of flowing water to generate a water hammer effect through the mechanical action of two check valves (a drain valve and a supply valve), lifting water from a lower level to a higher level. Water hammer pumps do not consume energy sources such as coal, oil, or electricity, making them economical, practical, and offering significant environmental benefits. Specific engineering procedures include:

[0004] Initially, the drain valve is open due to the weight of its valve assembly, while the supply valve is closed. Due to the water level difference, water from the upper tank is supplied to the main pipeline through the power water pipe from the inlet and then discharged into the tailrace tank via the drain valve. When the water flow in the power water pipe accelerates to a velocity exceeding a certain critical value, causing the thrust of the water flow to exceed the weight of the drain valve's valve assembly, the thrust pushes the drain valve's valve assembly to close. The sudden closure of the drain valve causes a severe water hammer effect inside the main pipeline, resulting in a rapid increase in pressure. This causes the supply valve's valve assembly to open, allowing water from the main pipeline to flow into the pressure tank. At this point, the air inside the pressure tank is compressed, increasing the pressure, while the water in the main pipeline decreases, reducing the pressure. This causes the valve disc assembly of the water supply valve to reset, closing the water supply valve again. Conversely, the valve disc assembly of the drain valve resets, reopening the drain valve, and the water hammer pump enters the next working cycle. This cycle repeats, ensuring continuous water output from the pumping station.

[0005] In the previous cycle, water from the main pipeline enters the pressure tank, creating a negative pressure at the second interface of the main pipeline. As a result, outside air is drawn into the main pipeline through the air inlet and flows into the pressure tank along with the water in the main pipeline in the next cycle, replenishing the air dissolved and discharged by the water in the pressure tank.

[0006] Existing water hammer pumps only have the function of lifting water, which is relatively simple. Utility Model Content

[0007] This utility model provides a water hammer pump system, including: a water hammer pump body, comprising a main pipeline, a drain valve, a water supply valve, and a pressure tank; the main pipeline includes a main pipe and a third branch pipe connected together; the main pipe has an inlet, a first interface, and a second interface; the third branch pipe has a third interface and a fourth interface; the drain valve is located at the first interface; the pressure tank and the water supply valve are located at the second interface; a first check valve is located at the third interface and configured to conduct from the outside to the inside of the third branch pipe; a pneumatic drive device and a second check valve; the pneumatic drive device is connected to the fourth interface through the second check valve, and the second check valve is configured to conduct from the inside of the third branch pipe to the pneumatic drive device;

[0008] When the drain valve is closed, the liquid level inside the third branch pipe rises, the first check valve closes, and the second check valve opens to supply air from inside the third branch pipe to the pneumatic drive device.

[0009] When the drain valve is opened, the liquid level inside the third branch pipe drops, the first check valve opens to supply air from the outside into the third branch pipe, and the second check valve closes.

[0010] In some exemplary embodiments, the water hammer pump system further includes an air tank, through which the second check valve is connected to the pneumatic drive device.

[0011] In some exemplary embodiments, the water hammer pump system further includes a second piston disposed within the third branch pipe, wherein the third interface and the fourth interface are both located above the second piston.

[0012] In some exemplary embodiments, the pneumatic drive device includes a pneumatic pump.

[0013] In some exemplary embodiments, the pneumatic pump includes at least one of a pneumatic diaphragm pump and a pneumatic plunger pump.

[0014] In some exemplary embodiments, the pneumatic drive device includes: a pneumatic motor connected to the second one-way valve; and a liquid pump drivenly connected to the pneumatic motor, the pneumatic motor being configured to drive the liquid pump.

[0015] In some exemplary embodiments, the pneumatic motor includes at least one of a piston motor, a vane motor, a gear motor, and a turbine motor.

[0016] In some exemplary embodiments, the pneumatic drive device includes: a mounting base; a cylinder including a cylinder barrel, a piston assembly, and a return spring, the cylinder barrel being disposed on the mounting base, the piston assembly being disposed on the cylinder barrel, and the return spring being configured to drive the piston assembly to return to its original position; a telescopic mechanism located on one side of the cylinder, including a mounting cylinder and a connecting rod, the mounting cylinder being disposed on the mounting base and having a first air port, a second air port, and a third air port, the first air port and the second air port being correspondingly disposed circumferentially on the mounting cylinder, the second air port and the third air port being correspondingly disposed axially on the mounting cylinder, the connecting rod having a first connecting structure and a second connecting structure, the first connecting structure and the... The second connecting structure is sequentially arranged along the axial direction of the connecting rod. The connecting rod is reciprocally and sealingly inserted into the mounting cylinder from the end of the mounting cylinder. Both the first and second connecting structures are located inside the mounting cylinder. The first air port is connected to the second one-way valve, and the second air port is connected to the interior of the cylinder. A transmission component is hinged to the piston assembly, the connecting rod, and the mounting base. A transmission conversion device and a rotation transmission device are sequentially connected, with the piston assembly, the transmission conversion device, and the rotation transmission device sequentially connected. The transmission conversion device is configured to convert the reciprocating linear movement of the piston assembly into the unidirectional rotation of the rotation transmission device.

[0017] Based on the first connecting structure connecting the first air port and the second air port, the connecting rod cuts off the second air port and the third air port. The pressure gas supplied from the second one-way valve drives the piston assembly to move, the piston assembly drives the transmission component to move, and the transmission component drives the connecting rod to move.

[0018] Based on the second connecting structure connecting the second air port and the third air port, the connecting rod cuts off the first air port and the second air port, the reset spring drives the piston assembly to reset, the piston assembly drives the transmission component to reset, the transmission component drives the connecting rod to reset, and the pressurized gas supplied into the cylinder from the second one-way valve is discharged from the third air port.

[0019] In some exemplary embodiments, the piston assembly includes a piston and a piston rod connected together, the return spring is located in the rodless chamber of the cylinder, the second air port is connected to the rodless chamber, the transmission member and the piston rod, as well as the transmission member and the connecting rod, are all hingedly connected by a hinge structure of a hinge shaft and an elongated hole, and the transmission member and the mounting base are hingedly connected by a hinge structure of a hinge shaft and a circular hole.

[0020] In some exemplary embodiments, the first connecting structure is an annular groove, the second connecting structure is a notched groove, the notched groove is located on the side of the annular groove away from the transmission member, and the connecting rod and the piston rod are both located on the upper side of the mounting base.

[0021] In some exemplary embodiments, the transmission conversion device includes a base, an eccentric wheel, and a drive rod. The rotation shaft of the eccentric wheel is rotatably mounted on the base. One end of the drive rod is hinged to the piston assembly, and the other end is hinged to the eccentric shaft of the eccentric wheel. The rotation transmission device includes an inertia wheel and an output wheel, both of which are fixed on the rotation shaft of the eccentric wheel.

[0022] In some exemplary embodiments, the water hammer pump system further includes a liquid pump, which is connected to the rotary transmission device and configured to drive the liquid pump.

[0023] In some exemplary embodiments, the water hammer pump system further includes: a generator, which is driven to the rotary transmission device and configured to drive the generator to operate; a drive motor, which is electrically connected to the generator and configured to drive the drive motor to operate; and a liquid pump, which is driven to the drive motor and configured to drive the liquid pump to operate.

[0024] The technical solution provided in this embodiment of the utility model describes a water hammer pump system where, during use, the upper end of the third branch pipe, the third interface, and the fourth interface are all located above the water surface in the upper tank. Water from the upper tank is continuously supplied into the main pipe through the inlet. The drain valve discharges water. When the thrust of the water flow in the main pipe pushes the valve disc assembly of the drain valve to close it, the drain valve stops discharging water. A violent water hammer effect occurs inside the main pipe, causing a rapid increase in pressure. This pressure not only causes the valve disc assembly of the water supply valve to open, allowing water inside the main pipe to flow into the pressure tank from the water supply valve, but also causes the liquid level in the third branch pipe to rise. This allows gas above the liquid level in the third branch pipe to be supplied to the pneumatic drive device through the second one-way valve. The first check valve shuts off during the process. After the water hammer effect ends, not only does the valve disc assembly of the drain valve reset and reopen the drain valve, allowing it to continue draining water, but the valve disc assembly of the delivery valve also resets and closes the delivery valve. Furthermore, the liquid level in the third branch pipe drops, allowing external gas to be supplied from the first check valve to the liquid level above the third branch pipe. During this process, the second check valve shuts off. Therefore, when the water hammer pump is running continuously, the liquid level in the third branch pipe will periodically rise and fall. The first check valve will periodically supply gas to the liquid level above the third branch pipe, and the second check valve will periodically supply gas to the pneumatic drive device. This not only enables the pressure tank to continuously pump water but also ensures the continuous operation of the pneumatic drive device.

[0025] Furthermore, the pneumatic drive device directly or indirectly drives the liquid pump to operate, and the liquid pump supplies water from the tailrace pool to the upper pool. This scheme can effectively improve the pumping capacity of the water hammer pump body and the utilization rate of water in the upper pool under the same hydraulic performance.

[0026] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained by means of the structures particularly pointed out in the description and the drawings. Attached Figure Description

[0027] The accompanying drawings are provided to further illustrate the technical solution of this utility model and constitute a part of the specification. They are used together with the embodiments of this application to explain the technical solution of this utility model and do not constitute a limitation on the technical solution of this utility model.

[0028] Figure 1 A three-dimensional structural diagram of a water hammer pump system in use, provided for some embodiments of this utility model;

[0029] Figure 2 A three-dimensional structural diagram of a water hammer pump system in use, provided for other embodiments of this utility model;

[0030] Figure 3 for Figure 2 The diagram shows the structure of the third branch pipe, the first check valve, the second check valve and the piston after assembly. The first check valve is open and the second check valve is closed.

[0031] Figure 4 for Figure 2 The diagram shows the structure of the third branch pipe, the first check valve, the second check valve and the piston after assembly. The first check valve is closed and the second check valve is open.

[0032] Figure 5 A three-dimensional structural diagram of a water hammer pump system in use, provided for some embodiments of the present invention;

[0033] Figure 6 for Figure 5 A schematic diagram of the assembled structure of the pneumatic drive device, transmission conversion device, rotary transmission device and generator.

[0034] Figure 7 for Figure 6 A schematic diagram of the structure after the telescopic mechanism and transmission components are assembled.

[0035] Figure 8 for Figure 6 A cross-sectional view of the telescopic mechanism.

[0036] The correspondence between the reference numerals and the component names is as follows:

[0037] 100 Water hammer pump body, 111 Main pipe, 112 Third branch pipe, 120 Drain valve, 130 Water supply valve, 140 Pressure tank, 200 First check valve, 300 Second check valve, 400 Pneumatic drive device, 410 Mounting base, 420 Telescopic mechanism, 421 Mounting cylinder, 422 Connecting rod, 423 First air port, 424 Second air port, 425 Third air port, 426 First connecting structure, 427 Second connecting structure, 428 Connecting rod, 430 Cylinder, 431 Piston rod, 441 Base, 442 Eccentric wheel, 443 Drive rod, 451 Inertia wheel, 452 Output wheel, 460 Transmission component, 500 Air tank, 600 Tailwater pool, 700 Upper pool, 800 High-level water pool, 900 Second piston, 910 Generator, 920 Liquid pump. Detailed Implementation

[0038] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features described in this application can be arbitrarily combined with each other.

[0039] The water hammer pump system provided in this embodiment of the utility model, such as Figure 1 , Figure 2 and Figure 5 As shown, it includes: a water hammer pump body 100, which includes a main pipeline, a drain valve 120, a water supply valve 130, and a pressure tank 140. The main pipeline includes a main pipe 111 and a third branch pipe 112 connected to each other. The main pipe 111 has an inlet, a first interface, and a second interface. The third branch pipe 112 has a third interface and a fourth interface. The drain valve 120 is located at the first interface, and the pressure tank 140 and the water supply valve 130 are located at the second interface. A first check valve 200 is located at the third interface and is configured to conduct from the outside to the inside of the third branch pipe 112. A pneumatic drive device 400 and a second check valve 300 are also included. The pneumatic drive device 400 is connected to the fourth interface through the second check valve 300, and the second check valve 300 is configured to conduct from the inside of the third branch pipe 112 to the pneumatic drive device 400.

[0040] With the drain valve 120 closed, the liquid level inside the third branch pipe 112 rises, the first check valve 200 closes, and the second check valve 300 opens, allowing air to be supplied from inside the third branch pipe 112 to the pneumatic drive device 400 (e.g., Figure 4 (as shown)

[0041] With the drain valve 120 open, the liquid level inside the third branch pipe 112 drops, the first check valve 200 opens, and air is supplied from the outside into the third branch pipe 112, while the second check valve 300 closes (e.g., Figure 3 (As shown).

[0042] When the water hammer pump system is in use, the upper end of the third branch pipe 112, the third interface, and the fourth interface are all located above the water level in the upper tank 700. Water from the upper tank 700 is continuously supplied into the main pipe 111 through the inlet. The drain valve 120 drains water. When the thrust of the water flow in the main pipe 111 pushes the valve disc assembly of the drain valve 120 to close the drain valve 120, the drain valve 120 will stop draining water. A violent water hammer effect will occur inside the main pipe, and the pressure will increase rapidly. This pressure not only causes the valve disc assembly of the water delivery valve 130 to open the water delivery valve 130, allowing water inside the main pipe to flow into the pressure tank 140 from the water delivery valve 130, but also causes the liquid level in the third branch pipe 112 to rise. This allows the gas above the liquid level in the third branch pipe 112 to be supplied to the pneumatic drive device 400 through the second check valve 300. During this process, the first check valve 20... 0. After the water hammer effect ends, not only does the valve disc assembly of the drain valve 120 reset and reopen the drain valve 120, allowing it to continue draining water, but the valve disc assembly of the water supply valve 130 also resets and closes the water supply valve 130. Furthermore, the liquid level in the third branch pipe 112 drops, allowing external gas to be supplied from the first one-way valve 200 to the liquid level above the liquid level in the third branch pipe 112. During this process, the second one-way valve 300 shuts off. Therefore, when the water hammer pump body 100 operates continuously, the liquid level in the third branch pipe 112 will periodically rise and fall. The first one-way valve 200 will periodically supply gas to the liquid level above the liquid level in the third branch pipe 112, and the second one-way valve 300 will periodically supply gas to the pneumatic drive device 400. This not only enables the pressure tank 140 to continuously pump water but also ensures the continuous operation of the pneumatic drive device 400. Note 800 refers to the high-level water tank.

[0043] The third branch pipe 112, the first one-way valve 200, the pneumatic drive device 400, and the second one-way valve 300 may be a single unit; or the third branch pipe 112, the first one-way valve 200, the pneumatic drive device 400, and the second one-way valve 300 may be multiple units, which may be two, three, or four units, etc.; the third branch pipe 112 may be a straight pipe, or it may be a bent pipe including a horizontal section and a vertical section, with the vertical section located on one side of the main pipe 111 and the lower end of the vertical section connected to the main pipe 111 through the horizontal section, etc.; all of the above can achieve the purpose of this application, and their purpose has not departed from the design concept of this utility model, so they will not be elaborated here, and all should fall within the protection scope of this application.

[0044] In some examples, such as Figures 1 to 5As shown, the main pipe 111 includes a horizontal pipe, a first branch pipe, and a second branch pipe. Both the first and second branch pipes are located above the horizontal pipe and are connected to the horizontal pipe at their lower ends. The inlet is located at one end of the horizontal pipe. The first interface is located at the top of the first branch pipe, and the second interface is located at the top of the second branch pipe. The third branch pipe 112 is also located above the horizontal pipe and is connected to the horizontal pipe at its lower end. The third interface and the fourth interface are both located on the upper part (or top wall) of the side wall of the third branch pipe 112. The first, second, and third branch pipes 112 are all vertically arranged in the vertical direction. The valve disc assembly of the drain valve 120 reciprocates periodically in the vertical direction, and the valve disc assembly of the supply valve 130 also reciprocates periodically in the vertical direction.

[0045] The third branch pipe 112 may be located between the first branch pipe and the second branch pipe; or the second branch pipe may be located between the first branch pipe and the third branch pipe 112; or the first branch pipe may be located between the second branch pipe and the third branch pipe 112, etc. All of the above can achieve the purpose of this application, and their purpose has not deviated from the design concept of this utility model. They will not be elaborated here, and all should fall within the protection scope of this application.

[0046] In some embodiments, such as Figure 1 , Figure 2 and Figure 5 As shown, the horizontal pipe includes a first pipe and a power pipe that are connected. The axes of the first pipe and the power pipe intersect perpendicularly or obliquely. For example, the power pipe extends obliquely upward from one end adjacent to the first pipe to the end away from the first pipe (i.e., the axes of the first pipe and the power pipe intersect obliquely). The inlet is located at the end of the power pipe away from the first pipe. The second branch pipe is located between the first branch pipe and the third branch pipe 112. Both the first branch pipe and the second branch pipe are connected to the first pipe. Alternatively, the first branch pipe can be configured as an elbow, with the elbow connected to the end of the first pipe away from the power pipe. Alternatively, the third branch pipe 112 can be connected to the first pipe; or it can be, as shown in the diagram. Figure 1 , Figure 2 and Figure 5 As shown, the third branch pipe 112 is connected to the power pipeline in one of the following ways; or the horizontal pipe may only include the first pipeline and not the power pipeline, in which case the third branch pipe 112 is connected to the first pipeline; all of the above can achieve the purpose of this application, and their purpose has not departed from the design concept of this utility model, so they will not be described in detail here, and all should fall within the protection scope of this application.

[0047] Water from the upper tank 700 is continuously supplied into the main pipe 111 through the inlet. The drain valve 120 drains water. When the thrust of the water flow in the main pipe 111 pushes the valve disc assembly of the drain valve 120 upwards, closing the drain valve 120, the drain valve 120 stops draining. A violent water hammer effect occurs inside the main pipe, causing a rapid increase in pressure. This pressure not only causes the valve disc assembly of the water supply valve 130 to move upwards, opening the water supply valve 130 (allowing water inside the main pipe to flow from the water supply valve 130 into the pressure tank 140), but also causes the liquid level in the third branch pipe 112 to rise (allowing gas above the liquid level in the third branch pipe 112 to be supplied from the second one-way valve 300 to the pneumatic drive device 400; during this process, the first one-way valve 200 is shut off). After the water hammer effect ends, not only does the drain valve... The valve disc assembly of 120 resets, reopening the drain valve 120 (allowing the drain valve 120 to continue draining water), and the valve disc assembly of the water supply valve 130 resets, closing the water supply valve 130. This also causes the liquid level in the third branch pipe 112 to drop (allowing external gas to be supplied from the first check valve 200 to the liquid level above the third branch pipe 112, during which the second check valve 300 is shut off). Therefore, when the water hammer pump body 100 is running continuously, the liquid level in the third branch pipe 112 will rise and fall periodically. The first check valve 200 will periodically supply gas to the liquid level above the third branch pipe 112, and the second check valve 300 will periodically supply gas to the pneumatic drive device 400. This not only enables the pressure tank 140 to continuously pump water, but also enables the pneumatic drive device 400 to operate continuously.

[0048] In some examples, such as Figure 1 , Figure 2 and Figure 5 As shown, the water hammer pump system also includes: an air tank 500, and a second check valve 300 connected to a pneumatic drive device 400 through the air tank 500. The air tank 500 stores the gas supplied by the second check valve 300 and supplies it to the pneumatic drive device 400 when the gas reaches the set pressure F, so that the pneumatic drive device 400 is driven by the pressure gas at the set pressure F, thus improving the operational stability of the pneumatic drive device 400.

[0049] In some examples, such as Figure 2 and Figure 5As shown, the water hammer pump system also includes a second piston 900, which is reciprocatingly and sealed within the third branch pipe 112. The third and fourth interfaces are both located above the second piston 900. The water level in the third branch pipe 112 is below the second piston 900. The second piston 900 moves periodically up and down along with the water level in the third branch pipe 112, preventing the water in the third branch pipe 112 from flowing along the second one-way valve 300 to the air tank 500 and the pneumatic drive device 400. The second piston 900 has an upwardly protruding guide post, and the top wall of the third branch pipe 112 has a guide hole. The guide post is reciprocating and sealed within the guide hole, allowing the second piston 900 to tilt within the third branch pipe 112.

[0050] In some examples, such as Figure 1 and Figure 2 As shown, the pneumatic drive device 400 includes a pneumatic pump (i.e., a pneumatic-hydraulic pump).

[0051] The inlet of the pneumatic pump is connected to the tailrace pool 600, and the outlet of the pneumatic pump is connected to the upper pool 700. The second one-way valve 300 periodically supplies air to the air tank 500, which in turn continuously supplies air to the pneumatic pump, enabling the pneumatic pump to operate continuously. The pneumatic pump supplies water from the tailrace pool 600 to the upper pool 700. This scheme can effectively improve the pumping capacity of the water hammer pump body 100 and the utilization rate of water in the upper pool 700 under the same hydraulic performance.

[0052] It can be a pneumatic diaphragm pump; or it can be a pneumatic plunger pump, etc.; all of the above can achieve the purpose of this application, and their purpose has not deviated from the design concept of this utility model. They will not be elaborated here, and all should fall within the protection scope of this application.

[0053] In other examples, the pneumatic drive device 400 includes: a pneumatic motor connected to a second check valve 300; and a liquid pump drivenly connected to the pneumatic motor, the pneumatic motor being configured to drive the liquid pump (not shown in this embodiment).

[0054] The inlet of the liquid pump is connected to the tailrace pool 600, and the outlet of the liquid pump is connected to the upper pool 700. The second one-way valve 300 periodically supplies air to the air tank 500, which in turn continuously supplies air to the pneumatic motor, causing the pneumatic motor to run continuously. The pneumatic motor drives the liquid pump to run continuously, and the liquid pump supplies water from the tailrace pool 600 to the upper pool 700. This scheme can effectively improve the pumping capacity of the water hammer pump body 100 and the utilization rate of water in the upper pool 700 under the same hydraulic performance.

[0055] The pneumatic motor can be a piston motor; or it can be a vane motor; or it can be a gear motor; or it can be a turbine motor, etc.; all of the above can achieve the purpose of this application, and their purpose has not deviated from the design concept of this utility model. They will not be elaborated here, and all should fall within the protection scope of this application.

[0056] Alternatively, the pneumatic motor can be connected to the generator via a drive connection, the generator, energy storage device, and control device can be electrically connected, the control device and drive motor can be electrically connected, and the drive motor and liquid pump can be connected via a drive connection. Under the control of the control device, the generator supplies power to the energy storage device, the energy storage device stores electrical energy and supplies power to the drive motor, the drive motor drives the liquid pump to run, and the liquid pump supplies water from the tailrace pool 600 to the upper pool 700. This scheme can effectively improve the pumping capacity of the water hammer pump body 100 and the utilization rate of water in the upper pool 700 under the same hydraulic performance.

[0057] In some other examples, such as Figures 5 to 8 As shown, the pneumatic drive device 400 includes: a mounting base 410; a cylinder 430, which includes a cylinder barrel, a piston assembly, and a return spring. The piston assembly includes a piston and a piston rod 431 connected together. The cylinder barrel is located on the mounting base 410, the piston is located on the cylinder barrel, and the piston rod 431 extends from the right end of the cylinder barrel. The return spring is configured to drive the piston assembly to return to its original position; and a telescopic mechanism 420, located on one side of the cylinder 430, which includes a mounting cylinder 421 and a connecting rod 422. The mounting cylinder 421 is located on the mounting base 410 and has a first air port 423, a second air port 424, and a third air port 425. The first air port 423 and the second air port 424 are correspondingly arranged circumferentially on the mounting cylinder 421, and the second air port 424 and the third air port 425 are correspondingly arranged axially on the mounting cylinder 421. The connecting rod 422 has a first connecting joint. The piston assembly consists of a first connecting structure 426 and a second connecting structure 427, which are sequentially arranged axially on the connecting rod 422. The connecting rod 422 is reciprocally and sealingly inserted into the mounting cylinder 421 and extends out of the mounting cylinder 421 from the right end. Both the first connecting structure 426 and the second connecting structure 427 are located inside the mounting cylinder 421. The first air port 423 is connected to the air tank 500, and the second air port 424 is connected to the inside of the cylinder. The piston assembly consists of a transmission component 460, which is hinged to the piston rod 431, the connecting rod 422, and the mounting base 410. The piston rod 431, the transmission conversion device, and the rotational transmission device are sequentially connected. The transmission conversion device is configured to convert the reciprocating linear movement of the piston assembly into the unidirectional rotation of the rotational transmission device.

[0058] Based on the first connecting structure 426 connecting the first air port 423 and the second air port 424, the connecting rod 422 cuts off the second air port 424 and the third air port 425. The pressurized gas supplied from the gas tank 500 is sequentially supplied into the cylinder through the first air port 423, the first connecting structure 426 and the second air port 424, driving the piston assembly to move (if the piston assembly is extended, the piston assembly reset is driven by the reset spring to retract; if the piston assembly is retracted, the piston assembly reset is driven by the reset spring to extend). The piston assembly drives the transmission component 460 to move, and the transmission component 460 drives the connecting rod 422 to move.

[0059] Based on the second connecting structure 427 connecting the second air port 424 and the third air port 425, the connecting rod 422 cuts off the first air port 423 and the second air port 424. The pressurized gas supplied from the gas tank 500 into the cylinder 430 is discharged to the outside through the second air port 424, the second connecting structure 427 and the third air port 425 in sequence. The reset spring drives the piston assembly to reset, the piston assembly drives the transmission component 460 to reset, and the transmission component 460 drives the connecting rod 422 to reset.

[0060] The piston assembly extends when it is driven to move, and retracts when it is driven to move back by the return spring. When the connecting rod 422 is near the end of its extension stroke, the second connecting structure 427 connects the second air port 424 and the third air port 425. At this time, the pressurized gas in the rodless chamber is discharged to the outside through the second air port 424, the second connecting structure 427 and the third air port 425 in sequence, and the pressure in the rodless chamber decreases. The return spring drives the piston assembly to retract. When the connecting rod 422 is near the end of its retraction stroke, the first connecting structure 426 connects the first air port 423 and the second air port 424. At this time, the pressurized gas supplied by the gas tank 500 is supplied into the rodless chamber through the first air port 423, the first connecting structure 426 and the second air port 424 in sequence, and the pressure in the rodless chamber increases. The pressurized gas in the rodless chamber drives the piston assembly to extend.

[0061] In some embodiments, the action of driving the piston assembly is to extend the piston assembly, and the action of resetting the piston assembly is to retract the piston assembly driven by the return spring. Figures 6 to 8 As shown, the return spring is located in the rodless chamber of the cylinder 430, and the second air port 424 is connected to the rodless chamber. The transmission component 460 and the piston rod 431 are hinged together through a hinge structure of a hinge shaft and a long hole. The connecting rod 422 is hinged to the connecting rod 428. The transmission component 460 and the connecting rod 428 are hinged together through a hinge structure of a hinge shaft and a long hole. The transmission component 460 and the mounting base 410 are hinged together through a hinge structure of a hinge shaft and a round hole. Thus, when the piston rod 431 moves, the piston rod 431 will drive the transmission component 460 to move, and the transmission component 460 will drive the connecting rod 422 to move.

[0062] In some embodiments, such as Figures 6 to 8 As shown, the transmission component 460 is a folded plate, the first connecting structure 426 is an annular groove or through hole, and the second connecting structure 427 is a notched groove. The notched groove is located on the side of the annular groove away from the transmission component 460. The connecting rod 422 and the piston rod 431 are both located on the upper side of the mounting base 410. If the piston rod 431 extends, the connecting rod 422 extends; if the piston rod 431 retracts, the connecting rod 422 retracts. Alternatively, the notched groove can be located on the side of the annular groove adjacent to the transmission component 460, the connecting rod 422 can be located on the lower side of the mounting base 410, and the piston rod 431 can be located on the upper side of the mounting base 410. In this case, if the piston rod 431 extends, the connecting rod 422 retracts; if the piston rod 431 retracts, the connecting rod 422 extends. All of the above configurations achieve the purpose of this application, and their intent does not depart from the design concept of this utility model. Further details are omitted here, and all should fall within the protection scope of this application.

[0063] In some embodiments, such as Figure 6 As shown, the transmission conversion device includes a base 441, an eccentric wheel 442, and a drive rod 443. The rotation shaft of the eccentric wheel 442 is rotatably mounted on the base 441. One end of the drive rod 443 is hinged to the piston assembly, and the other end is hinged to the eccentric shaft of the eccentric wheel 442. Figure 6 As shown, the rotational transmission device includes an inertia wheel 451 and an output wheel 452. Both the inertia wheel 451 and the output wheel 452 are fixed on the rotational shaft of the eccentric wheel 442. The eccentric wheel 442, the inertia wheel 451, and the output wheel 452 rotate synchronously. Under the rotational inertia of the inertia wheel 451, the output wheel 452 and the eccentric wheel 442 can achieve continuous, uninterrupted rotation, and the piston assembly can achieve continuous reciprocating linear movement. In this scheme, the rotation angle of the eccentric wheel 442, the inertia wheel 451, and the output wheel 452 is 360 degrees in one cycle of the piston assembly. There are two eccentric wheels 442, which are connected by an eccentric shaft. Two rotational shafts are arranged on opposite sides of the two eccentric wheels.

[0064] In some embodiments, the water hammer pump system further includes a liquid pump, which is connected to the output wheel 452 in a transmission manner, and the output wheel 452 is configured to drive the liquid pump to operate (not shown in this embodiment).

[0065] The inlet of the liquid pump is connected to the tailrace pool 600, and the outlet of the liquid pump is connected to the upper pool 700. The output wheel 452 drives the liquid pump to rotate continuously, and the liquid pump supplies water from the tailrace pool 600 to the upper pool 700. This scheme can effectively improve the pumping capacity of the water hammer pump body 100 and the utilization rate of water in the upper pool 700 under the same hydraulic performance.

[0066] In other embodiments, such as Figure 5As shown, the water hammer pump system also includes: a generator 910, an energy storage device, and a control device that are electrically connected; the generator 910 is driven by an output wheel 452, the output wheel 452 is configured to drive the generator 910 to run; the energy storage device is configured to store the electrical energy generated by the generator 910 and to supply power to the drive motor; the drive motor is electrically connected to the control device; and the liquid pump 920 is driven by the drive motor, the drive motor is configured to drive the liquid pump 920 to run.

[0067] The output wheel 452 drives the generator 910 to run continuously. Under the control of the control device, the generator 910 supplies power to the energy storage device, which stores electrical energy and supplies power to the drive motor. The drive motor drives the liquid pump 920 to run, and the liquid pump 920 supplies water from the tailrace pool 600 to the upper pool 700. This scheme can effectively improve the pumping volume of the water hammer pump body 100 and the utilization rate of water in the upper pool 700 under the same hydraulic performance.

[0068] In summary, the technical solution provided by this utility model embodiment, when the water hammer pump system is in use, the upper end of the third branch pipe, the third interface, and the fourth interface are all located above the water surface in the upper tank. Water from the upper tank is continuously supplied into the main pipe through the inlet. The drain valve discharges water. When the thrust of the water flow in the main pipe pushes the valve disc assembly of the drain valve to close the drain valve, the drain valve will stop discharging water. A violent water hammer effect will occur inside the main pipe, and the pressure will increase rapidly. This pressure not only causes the valve disc assembly of the water supply valve to open the water supply valve, allowing water inside the main pipe to rush into the pressure tank from the water supply valve, but also causes the liquid level in the third branch pipe to rise, allowing gas above the liquid level in the third branch pipe to be supplied to the pneumatic drive device from the second one-way valve. During this process, the first check valve closes; after the water hammer effect ends, not only does the valve disc assembly of the drain valve reset and reopen the drain valve, allowing it to continue draining water, but the valve disc assembly of the delivery valve also resets and closes the delivery valve. Furthermore, the liquid level in the third branch pipe drops, allowing external gas to be supplied from the first check valve to the liquid level above the third branch pipe. During this process, the second check valve closes. Therefore, when the water hammer pump is running continuously, the liquid level in the third branch pipe will periodically rise and fall. The first check valve will periodically supply gas to the liquid level above the third branch pipe, and the second check valve will periodically supply gas to the pneumatic drive device. This not only enables the pressure tank to continuously pump water but also ensures the continuous operation of the pneumatic drive device.

[0069] Furthermore, the pneumatic drive device directly or indirectly drives the liquid pump to operate, and the liquid pump supplies water from the tailrace pool to the upper pool. This scheme can effectively improve the pumping capacity of the water hammer pump body and the utilization rate of water in the upper pool under the same hydraulic performance.

[0070] In the description of this utility model, it should be noted that the terms "upper", "lower", "one side", "the other side", "one end", "the other end", "side", "opposite", "four corners", "periphery", "'mouth' structure", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the structure referred to has a specific orientation, or is constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0071] In the description of the embodiments of this utility model, unless otherwise expressly specified and limited, the terms "connection," "direct connection," "indirect connection," "fixed connection," "installation," and "assembly" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. The terms "installation," "connection," and "fixed connection" can refer to a direct connection or an indirect connection through an intermediate medium, or they can refer to the internal communication between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0072] Although the embodiments disclosed in this utility model are as described above, the content described is only for the purpose of facilitating understanding of this utility model and is not intended to limit this utility model. Any person skilled in the art to which this utility model pertains may make any modifications and changes in the form and details of the implementation without departing from the spirit and scope disclosed in this utility model, but the patent protection scope of this utility model shall still be defined by the appended claims.

Claims

1. A water hammer pump system, characterized in that, include: The water hammer pump body includes a main pipeline, a drain valve, a water supply valve, and a pressure tank. The main pipeline includes a main pipe and a third branch pipe that are connected to each other. The main pipe has a water inlet, a first interface, and a second interface. The third branch pipe has a third interface and a fourth interface. The drain valve is located at the first interface, and the pressure tank and the water supply valve are located at the second interface. A first one-way valve is located at the third interface and configured to allow flow from the outside to the inside of the third branch pipe; A pneumatic drive device and a second check valve, wherein the pneumatic drive device is connected to the fourth interface through the second check valve, and the second check valve is configured to conduct from the inside of the third branch pipe toward the pneumatic drive device. When the drain valve is closed, the liquid level inside the third branch pipe rises, the first check valve closes, and the second check valve opens to supply air from inside the third branch pipe to the pneumatic drive device. When the drain valve is opened, the liquid level inside the third branch pipe drops, the first check valve opens to supply air from the outside into the third branch pipe, and the second check valve closes.

2. The water hammer pump system according to claim 1, characterized in that, Also includes: The gas tank, and the second one-way valve are connected to the pneumatic drive device through the gas tank.

3. The water hammer pump system according to claim 1, characterized in that, Also includes: The second piston is located inside the third branch pipe, and both the third and fourth interfaces are located above the second piston.

4. The water hammer pump system according to any one of claims 1 to 3, characterized in that, The pneumatic drive device includes a pneumatic pump.

5. The water hammer pump system according to claim 4, characterized in that, The pneumatic pump includes at least one of a pneumatic diaphragm pump and a pneumatic plunger pump.

6. The water hammer pump system according to any one of claims 1 to 3, characterized in that, The pneumatic drive device includes: A pneumatic motor is connected to the second check valve; and A liquid pump is connected to the pneumatic motor, and the pneumatic motor is configured to drive the liquid pump.

7. The water hammer pump system according to claim 6, characterized in that, The pneumatic motor includes at least one of a piston motor, a vane motor, a gear motor, and a turbine motor.

8. The water hammer pump system according to any one of claims 1 to 3, characterized in that, The pneumatic drive device includes: Mounting base; A cylinder includes a cylinder barrel, a piston assembly, and a return spring. The cylinder barrel is disposed on the mounting base, the piston assembly is disposed on the cylinder barrel, and the return spring is configured to drive the piston assembly to return to its original position. A telescopic mechanism, located on one side of the cylinder, includes a mounting cylinder and a connecting rod. The mounting cylinder is disposed on the mounting base and has a first air port, a second air port, and a third air port. The first air port and the second air port are correspondingly arranged circumferentially on the mounting cylinder, and the second air port and the third air port are correspondingly arranged axially on the mounting cylinder. The connecting rod has a first connecting structure and a second connecting structure, which are sequentially arranged axially on the connecting rod. The connecting rod is reciprocally and sealingly inserted into the mounting cylinder from its end. Both the first connecting structure and the second connecting structure are located inside the mounting cylinder. The first air port is connected to a second one-way valve, and the second air port is connected to the interior of the cylinder. The transmission component is hingedly connected to the piston assembly, the connecting rod, and the mounting base. A transmission conversion device and a rotation transmission device are provided, wherein the piston assembly, the transmission conversion device and the rotation transmission device are sequentially connected in a transmission manner, and the transmission conversion device is configured to convert the reciprocating linear movement of the piston assembly into the unidirectional rotation of the rotation transmission device. Based on the first connecting structure connecting the first air port and the second air port, the connecting rod cuts off the second air port and the third air port. The pressure gas supplied from the second one-way valve drives the piston assembly to move, the piston assembly drives the transmission component to move, and the transmission component drives the connecting rod to move. Based on the second connecting structure connecting the second air port and the third air port, the connecting rod cuts off the first air port and the second air port, the reset spring drives the piston assembly to reset, the piston assembly drives the transmission component to reset, the transmission component drives the connecting rod to reset, and the pressurized gas supplied into the cylinder from the second one-way valve is discharged from the third air port.

9. The water hammer pump system according to claim 8, characterized in that: The piston assembly includes a piston and a piston rod connected together. The return spring is located in the rodless chamber of the cylinder. The second air port is connected to the rodless chamber. The transmission component and the piston rod, as well as the transmission component and the connecting rod, are all hinged together by a hinge structure of a hinge shaft and an elongated hole. The transmission component and the mounting base are hinged together by a hinge structure of a hinge shaft and a circular hole. The first connecting structure is an annular groove, and the second connecting structure is a notched groove. The notched groove is located on the side of the annular groove away from the transmission member, and the connecting rod and the piston rod are both located on the upper side of the mounting base.

10. The water hammer pump system according to claim 8, characterized in that, The transmission conversion device includes a base, an eccentric wheel, and a drive rod. The rotation shaft of the eccentric wheel is rotatably mounted on the base. One end of the drive rod is hinged to the piston assembly, and the other end is hinged to the eccentric shaft of the eccentric wheel. The rotation transmission device includes an inertia wheel and an output wheel, both of which are fixed on the rotation shaft of the eccentric wheel.

11. The water hammer pump system according to claim 8, characterized in that: The water hammer pump system also includes a liquid pump, which is connected to the rotary transmission device, and the rotary transmission device is configured to drive the liquid pump; or The water hammer pump system also includes a generator, a drive motor, and a liquid pump. The generator is connected to the rotary transmission device, the drive motor is electrically connected to the generator, and the liquid pump is connected to the drive motor. The rotary transmission device is configured to drive the generator, the generator is configured to drive the drive motor, and the drive motor is configured to drive the liquid pump.

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