Vertical lifting water release check valve structure applied to water hammer effect pump

Abstract

The utility model discloses a vertical lifting water release check valve structure for water hammer effect pump, including power water delivery pipe, water release pipe, integrated water release valve body, check valve core, electric control air cylinder, lever transmission subassembly, the lower extreme of water release pipe is installed on power water delivery pipe, integrated water release valve body is installed in the upper end of water release pipe, and integrated water release valve body is set up with water release pipe intercommunication's water release passageway in the up and down direction, check valve core sets up in the just below of water release passageway, electric control air cylinder is connected with check valve core through lever transmission subassembly. Compared with prior art: electric control air cylinder controls the lift of check valve core through lever transmission subassembly, makes the opening and closing of valve more quickly, can accurate regulation water flow, improves water hammer pump work efficiency. When installing, water release valve body and check valve core are assembled together, can conveniently install again, can simplify pipeline structure. The valve body adopts vertical structure and installs, and is convenient for being applied to the environment of vertical pipeline.

Description

Technical Field

[0001] This utility model belongs to the field of hydropower generation, and specifically relates to a vertical lifting drain check valve structure applied to a water hammer effect pump. Background Technology

[0002] Water hammer pumps, which utilize the water hammer effect to convert low head energy into high head energy, are widely used in small hydropower stations for agricultural irrigation and mountain water supply. For water hammer pumps, the performance of their core component, the check valve, directly determines the efficiency of the entire system.

[0003] In traditional water hammer pump systems, the check valve plays a crucial role, controlling the direction and flow rate of water and directly affecting the pumping efficiency. However, most existing check valves have simple structures, relying on water pressure for natural control and lacking intelligent control functions. They struggle to automatically adjust their operating status according to actual working conditions, leading to unstable efficiency and susceptibility to malfunctions under varying flow and pressure conditions, resulting in high maintenance costs. Furthermore, traditional water hammer pump check valves suffer from the following technical defects:

[0004] 1. Separation of drain valve and check valve: This leads to redundant piping, limited installation space, easy leakage under high pressure, and easy hydraulic loss.

[0005] 2. Delayed valve response: The gravity-driven drain valve closes slowly, which will aggravate the water hammer pressure impact.

[0006] 3. Poor vertical adaptability: Traditional lift check valves need to be installed horizontally, while swing valves do not seal well in risers and are not suitable for vertical pipeline environments. Utility Model Content

[0007] To address the aforementioned problems, the primary objective of this invention is to provide a vertical lifting check valve structure for use in water hammer pumps. The lifting and lowering of the check valve core is controlled by an electric control cylinder, enabling the valve to open and close more quickly, accurately regulate water flow, and improve the working efficiency of the water hammer pump.

[0008] Another objective of this invention is to provide a vertical lifting drain check valve structure for use in water hammer effect pumps, wherein the drain valve body and the check valve core are assembled together, which facilitates installation and simplifies the pipeline structure.

[0009] Another objective of this invention is to provide a vertical lifting check valve structure for use in water hammer effect pumps. The valve body is installed vertically, making it convenient for use in vertical pipeline environments.

[0010] To achieve the above objectives, the technical solution of this utility model is as follows:

[0011] This utility model provides a vertical lifting drain check valve structure for use in water hammer effect pumps, comprising:

[0012] Powered water pipes used for conveying water flow;

[0013] A drain pipe, the lower end of which is installed on the power water supply pipe;

[0014] An integrated drain valve body is installed at the upper end of the drain pipe, and the integrated drain valve body has a drain channel in the vertical direction that is connected to the drain pipe.

[0015] A check valve core is disposed directly below the drain channel;

[0016] Electric control cylinder;

[0017] The lever transmission assembly connects the electrically controlled cylinder to the check valve core.

[0018] Furthermore, a flange is installed on the drain pipe, and the integrated drain valve body is installed on the drain pipe via the drain flange. The integrated drain valve body includes a flange connecting plate and a triangular support plate. The bottom surface of the flange connecting plate is connected to the drain flange, and the top surface of the flange connecting plate is connected to the triangular support plate. The drain channel is opened on the flange connecting plate, and the drain channel intersects with the power water supply pipe at a 90-degree angle. A vertical through hole is opened in the center of the triangular support plate, and the through hole is located above the drain channel. A guide sleeve is installed in the through hole, and a vertical guide rod is installed vertically within the guide sleeve. The upper end of the vertical guide rod is connected to the lever transmission assembly via a guide rod connector, and the lower end is connected to the check valve core. When the lever transmission assembly is activated, it can drive the vertical guide rod to move up and down within the guide sleeve, thereby driving the check valve core to rise and fall, realizing the opening and closing of the drain channel.

[0019] Furthermore, the vertical guide rod extends vertically through the check valve core and is able to move up and down relative to the check valve core; a spring is sleeved on the lower part of the vertical guide rod, and an external thread is provided on the outer surface of the lower part of the vertical guide rod, with a fixing nut connected to the external thread; the upper end of the spring abuts against the bottom surface of the check valve core through a washer, and the lower end of the spring abuts against the top surface of the fixing nut through a washer.

[0020] Furthermore, the check valve core has an "isosceles inverted trapezoid" structure, with the inclination angle of the inclined surfaces on both sides of the "isosceles inverted trapezoid" being 25-45 degrees. The top surface of the check valve core is vertically aligned with the drain channel of the integrated drain valve body, and a sealing ring is provided between them. The isosceles inverted trapezoidal shape of the check valve core allows the cone angle of the check valve core to face downwards, avoiding water resistance during movement and enabling rapid squeezing and discharge of water from the drain channel.

[0021] Furthermore, the top surface of the check valve core is provided with a wear-resistant alloy layer, which can reduce the wear of the check valve core.

[0022] Furthermore, the lever transmission assembly includes: a long lever swing arm, a short lever swing arm, a support arm, a bearing seat, a spline shaft, and a spline bushing. The lower end of the support arm is fixed to the power water supply pipe, the bearing seat is installed on the upper end of the support arm, and the spline bushing is sleeved on the outside of the spline shaft and rotatably mounted on the bearing seat via a bearing. One end of the long lever swing arm is connected to the output end of the electric control cylinder, and the other end is fixedly connected to the spline shaft. One end of the short lever swing arm is fixedly connected to the spline shaft, and the other end is rotatably connected to one end of the guide rod connector. The other end of the guide rod connector is rotatably connected to the vertical guide rod.

[0023] The beneficial effects of this utility model are, compared with the prior art:

[0024] 1. The electric control cylinder controls the lifting and lowering of the check valve core through the lever transmission assembly, making the valve open and close more quickly, accurately regulating the water flow, and improving the working efficiency of the water hammer pump.

[0025] 2. During installation, the drain valve body and check valve core are assembled together, which facilitates installation and simplifies the pipeline structure.

[0026] 3. The valve body adopts a vertical structure for installation, which is convenient for use in vertical pipeline environments. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of a vertical lifting check valve structure applied to a water hammer effect pump.

[0028] Figure 2 This is a schematic diagram of the valve body of a vertical lift drain check valve.

[0029] In the diagram: 1. Power water supply pipe; 2. Drain pipe; 3. Integrated drain valve body; 31. Flange connection plate; 32. Triangular support plate; 4. Drain channel; 5. Check valve core; 6. Electric control cylinder; 7. Lever transmission assembly; 71. Lever swing long arm; 72. Lever swing short arm; 73. Support arm; 74. Bearing seat; 75. Splined shaft; 76. Splined bushing; 8. Flange; 9. Guide sleeve; 10. Vertical guide rod; 11. Guide rod connector; 12. Spring; 13. Fixing nut; 14. Gasket; 15. Air storage tank; 16. Water supply tank. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0031] To achieve the above objectives, the technical solution of this utility model is as follows:

[0032] See Figure 1-2 As shown, this embodiment provides a vertical lift-type drain check valve structure applied to a water hammer effect pump, comprising:

[0033] 1. Powered water supply pipe for conveying water flow;

[0034] Drain pipe 2, the lower end of which is installed on the power water supply pipe 1;

[0035] An integrated drain valve body 3 is installed at the upper end of the drain pipe 2, and the integrated drain valve body 3 has a drain channel 4 connected to the drain pipe 2 in the vertical direction.

[0036] Check valve core 5, which is located directly below the drain channel 4;

[0037] Electric control cylinder 6;

[0038] The lever transmission assembly 7 is used to connect the electric control cylinder 6 to the check valve core 5.

[0039] In this application, the electrically controlled cylinder 6 is controlled by the main control unit, and its conveying end extends and retracts, driving the check valve core 5 to rise and fall through the lever transmission assembly 7. During the rising and falling process, the check valve core 5 opens or closes the drain channel 4, realizing the water hammer effect. Compared with the traditional water hammer pump that uses the water source's own pressure to open and close the drain valve, the check valve core 5 of this application is operated by intelligent pneumatic control, which makes its opening and closing faster, enabling instantaneous interception of the water source, resulting in a stronger water hammer effect. It can force more high-pressure water into the pumping energy storage tank, storing more elastic potential energy, resulting in a higher water head and providing more water to the horizontal turbine.

[0040] Furthermore, a flange 8 is also installed on the drain pipe 2. The integrated drain valve body 3 is installed on the drain pipe 2 through the drain flange 8. The integrated drain valve body 3 includes a flange connecting plate 31 and a triangular support plate 32. The bottom surface of the flange connecting plate 31 is connected to the drain flange 8, and the top surface of the flange connecting plate 31 is connected to the triangular support plate 32. The drain channel 4 is opened on the flange connecting plate 31, and the drain channel 4 intersects the power water supply pipe 1 at a 90-degree angle. The center of the triangular support plate 32 has a through hole in the vertical direction. The through hole is located above the drain channel 4. A guide sleeve 9 is installed in the through hole. A vertical guide rod 10 is installed vertically in the guide sleeve 9. The upper end of the vertical guide rod 10 is connected to the lever transmission assembly 7 through the guide rod connector 11, and the lower end is connected to the check valve core 5. When the lever transmission assembly 7 is activated, it can drive the vertical guide rod 10 to move up and down inside the guide sleeve 9, thereby driving the check valve core 5 to rise and fall, realizing the opening and closing of the drain channel 4.

[0041] Furthermore, the vertical guide rod 10 extends vertically through the check valve core 5 and is movable vertically relative to the check valve core 5. A spring 12 is sleeved on the lower part of the vertical guide rod 10, and an external thread is provided on the outer surface of the lower part of the vertical guide rod 10. A fixing nut 13 is connected to the external thread. The upper end of the spring 12 abuts against the bottom surface of the check valve core 5 via a washer 14, and the lower end of the spring 12 abuts against the top surface of the fixing nut 13 via a washer 14. In this application, the spring 12 can provide tension or thrust to change the installation position of the check valve core 5 on the vertical guide rod 10, thereby adjusting the stroke of the check valve core 5 and optimizing the water hammer effect generation frequency under different head conditions. The preload of the spring 12 can be adjusted by the fixing nut 13 at the bottom.

[0042] Furthermore, the check valve core 5 has an "isosceles inverted trapezoid" structure, with the inclination angle of the inclined surfaces on both sides of the "isosceles inverted trapezoid" being 25-45 degrees. The top surface of the check valve core 5 is vertically opposite to the drain channel 4 of the integrated drain valve body, and a sealing ring is provided between them. The isosceles inverted trapezoidal shape of the check valve core 5 allows the cone angle of the check valve core 5 to face downwards, avoiding water resistance during movement and achieving rapid squeezing and discharge of water from the drain channel 4.

[0043] Furthermore, the top surface of the check valve core 5 is also provided with a wear-resistant alloy layer, which can reduce the wear of the check valve core 5.

[0044] Further, the lever transmission assembly 7 includes: a lever swing long arm 71, a lever swing short arm 72, a support arm 73, a bearing seat 74, a spline shaft 75, and a spline bushing 76. The lower end of the support arm 73 is fixed to the power water supply pipe 1, the bearing seat 74 is installed on the upper end of the support arm 73, and the spline bushing 76 is sleeved on the outside of the spline shaft 75 and is rotatably mounted on the bearing seat 74 through a bearing. One end of the lever swing long arm 71 is connected to the output end of the electric control cylinder 6, and the other end is fixedly connected to the spline shaft 75. One end of the lever swing short arm 72 is fixedly connected to the spline shaft 75, and the other end is rotatably connected to one end of the guide rod connector 11. The other end of the guide rod connector 11 is rotatably connected to the vertical guide rod 10. In this application, when the electric control cylinder 6 is working, its output end extends and retracts in the vertical direction. When the output end of the cylinder extends downward, it will press one end of the lever swing arm 71 downward, which will then pry the other end of the lever swing arm 72 to move upward with the bearing seat 74 as the fulcrum. Then, the guide rod connector 11 can convert the arc motion of the lever swing arm 72 into the vertical motion of the vertical guide rod 10 by rotation. This will then pull the check valve core 5 upward through the vertical guide rod 10. The check valve core 5 approaches the drain channel 4 and quickly blocks the drain channel 4, achieving the water hammer effect. When water needs to be drained, the output end of the electric control cylinder 6 retracts upward, which lifts one end of the lever swing arm 71 upward, thereby causing the other end of the lever swing arm 72 to move downward with the bearing seat 74 as the fulcrum. Then, the guide rod connector 11 can convert the arc motion of the lever swing arm 72 into the downward vertical motion of the vertical guide rod 10 by rotation. This can then push the check valve core 5 downward through the vertical guide rod 10. The check valve core 5 moves away from the drain channel 4, and the drain channel 4 opens to drain water.

[0045] The working process of the water hammer effect pump in this embodiment is as follows: the water supply tank 16 supplies water, and the water is introduced into the power water supply pipe 1 by the water pump. The electric control cylinder 6 controls the check valve core 5 to open and close the drain channel, realizing the water hammer effect, and introducing the water into the air energy storage tank 15 to form high-pressure water energy, which is then lifted to a higher place for use. The electric control cylinder 6 is controlled by an intelligent control system, the specific implementation of which is as follows:

[0046] 1. By installing flow sensors and pressure sensors in the power water supply pipe 1, the water flow and pipeline pressure changes in the power water supply pipe 1 can be monitored in real time; a pressure sensor is installed inside the air energy storage tank 15 to monitor the pressure changes inside the air energy storage tank 15, and a water level sensor is installed on the water supply tank 16 to monitor the water level of the water source.

[0047] 2. A programmable logic controller (PLC) is used to receive signals from the sensor module, analyze and process them according to a preset program, and output control commands.

[0048] 3. The output shaft of the electric control cylinder is connected to the vertical guide rod through a lever swing arm. According to the controller's instructions, it drives the check valve core to move up and down, thereby realizing the opening and closing of the valve and the adjustment of the opening degree.

[0049] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A vertical lifting check valve structure applied to a water hammer effect pump, characterized in that, include: Powered water pipes used for conveying water flow; A drain pipe, the lower end of which is installed on the power water supply pipe; An integrated drain valve body is installed at the upper end of the drain pipe, and the integrated drain valve body has a drain channel in the vertical direction that is connected to the drain pipe. A check valve core is disposed directly below the drain channel; Electric control cylinder; The lever transmission assembly connects the electrically controlled cylinder to the check valve core.

2. The vertical lifting check valve structure applied to a water hammer effect pump as described in claim 1, characterized in that, A flange is also installed on the drain pipe. The integrated drain valve body is installed on the drain pipe through the drain flange. The integrated drain valve body includes a flange connecting plate and a triangular support plate. The bottom surface of the flange connecting plate is connected to the drain flange, and the top surface of the flange connecting plate is connected to the triangular support plate. The drain channel is opened on the flange connecting plate, and the drain channel intersects with the power water supply pipe at a 90-degree angle. A through hole in the center of the triangular support plate is opened in the vertical direction. The through hole is located above the drain channel. A guide sleeve is installed in the through hole. A vertical guide rod is installed vertically inside the guide sleeve. The upper end of the vertical guide rod is connected to the lever transmission assembly through the guide rod connector, and the lower end is connected to the check valve core.

3. The vertical lifting check valve structure applied to a water hammer effect pump as described in claim 2, characterized in that, The vertical guide rod passes through the check valve core from top to bottom and can move up and down relative to the check valve core. A spring is sleeved on the lower part of the vertical guide rod, and an external thread is provided on the outer surface of the lower part of the vertical guide rod. A fixing nut is connected to the external thread. The upper end of the spring abuts against the bottom surface of the check valve core through a washer, and the lower end of the spring abuts against the top surface of the fixing nut through a washer.

4. The vertical lifting check valve structure applied to a water hammer effect pump as described in claim 1, characterized in that, The check valve core has an "isosceles inverted trapezoid" structure. The inclination angle of the inclined surfaces on both sides of the "isosceles inverted trapezoid" is 25-45 degrees. The top surface of the check valve core is arranged vertically opposite to the drain channel of the integrated drain valve body, and a sealing ring is provided between the two.

5. The vertical lifting check valve structure applied to a water hammer effect pump as described in claim 1, characterized in that, The top surface of the check valve core is also provided with a wear-resistant alloy layer.

6. The vertical lifting check valve structure for water hammer effect pumps as described in claim 2, characterized in that, The lever transmission assembly includes: a long lever swing arm, a short lever swing arm, a support arm, a bearing seat, a spline shaft, and a spline bushing. The lower end of the support arm is fixed to the power water supply pipe, the bearing seat is installed on the upper end of the support arm, and the spline bushing is sleeved on the outside of the spline shaft and rotatably mounted on the bearing seat via a bearing. One end of the long lever swing arm is connected to the output end of the electric control cylinder, and the other end is fixedly connected to the spline shaft. One end of the short lever swing arm is fixedly connected to the spline shaft, and the other end is rotatably connected to one end of the guide rod connector. The other end of the guide rod connector is rotatably connected to the vertical guide rod.

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